diff --git a/Wox.Infrastructure/HttpRequest.cs b/Wox.Infrastructure/HttpRequest.cs
index 1e53db6d0b..e082d07525 100644
--- a/Wox.Infrastructure/HttpRequest.cs
+++ b/Wox.Infrastructure/HttpRequest.cs
@@ -11,21 +11,11 @@ using System.Text;
 //From:http://blog.csdn.net/zhoufoxcn/article/details/6404236
 namespace Wox.Infrastructure
 {
-    /// <summary>
-    /// 有关HTTP请求的辅助类
-    /// </summary>
     public class HttpRequest
     {
         private static readonly string DefaultUserAgent = "Wox/" + Assembly.GetEntryAssembly().GetName().Version.ToString() + " (+https://github.com/qianlifeng/Wox)";
 
-        /// <summary>
-        /// 创建GET方式的HTTP请求
-        /// </summary>
-        /// <param name="url">请求的URL</param>
-        /// <param name="timeout">请求的超时时间</param>
-        /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>
-        /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>
-        /// <returns></returns>
+
         public static HttpWebResponse CreateGetHttpResponse(string url, int? timeout, string userAgent, CookieCollection cookies)
         {
             if (string.IsNullOrEmpty(url))
@@ -50,16 +40,7 @@ namespace Wox.Infrastructure
             }
             return request.GetResponse() as HttpWebResponse;
         }
-        /// <summary>
-        /// 创建POST方式的HTTP请求
-        /// </summary>
-        /// <param name="url">请求的URL</param>
-        /// <param name="parameters">随同请求POST的参数名称及参数值字典</param>
-        /// <param name="timeout">请求的超时时间</param>
-        /// <param name="userAgent">请求的客户端浏览器信息，可以为空</param>
-        /// <param name="requestEncoding">发送HTTP请求时所用的编码</param>
-        /// <param name="cookies">随同HTTP请求发送的Cookie信息，如果不需要身份验证可以为空</param>
-        /// <returns></returns>
+
         public static HttpWebResponse CreatePostHttpResponse(string url, IDictionary<string, string> parameters, int? timeout, string userAgent, Encoding requestEncoding, CookieCollection cookies)
         {
             if (string.IsNullOrEmpty(url))
@@ -71,7 +52,6 @@ namespace Wox.Infrastructure
                 throw new ArgumentNullException("requestEncoding");
             }
             HttpWebRequest request = null;
-            //如果是发送HTTPS请求
             if (url.StartsWith("https", StringComparison.OrdinalIgnoreCase))
             {
                 ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
@@ -103,7 +83,6 @@ namespace Wox.Infrastructure
                 request.CookieContainer = new CookieContainer();
                 request.CookieContainer.Add(cookies);
             }
-            //如果需要POST数据
             if (!(parameters == null || parameters.Count == 0))
             {
                 StringBuilder buffer = new StringBuilder();
@@ -131,7 +110,7 @@ namespace Wox.Infrastructure
 
         private static bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
         {
-            return true; //总是接受
+            return true; 
         }
     }
 }
diff --git a/Wox.Infrastructure/Storage/UserSettings/UserSettingStorage.cs b/Wox.Infrastructure/Storage/UserSettings/UserSettingStorage.cs
index 18d1962995..8350fce8a6 100644
--- a/Wox.Infrastructure/Storage/UserSettings/UserSettingStorage.cs
+++ b/Wox.Infrastructure/Storage/UserSettings/UserSettingStorage.cs
@@ -70,6 +70,12 @@ namespace Wox.Infrastructure.Storage.UserSettings
         [JsonProperty]
         public OpacityMode OpacityMode { get; set; }
 
+        [JsonProperty]
+        public bool EnableWebSearchSuggestion { get; set; }
+
+        [JsonProperty]
+        public string WebSearchSuggestionSource { get; set; }
+
         [JsonProperty]
         public bool LeaveCmdOpen { get; set; }
 
diff --git a/Wox.Plugin.SystemPlugins/SuggestionSources/Baidu.cs b/Wox.Plugin.SystemPlugins/SuggestionSources/Baidu.cs
new file mode 100644
index 0000000000..2b4c03dfc1
--- /dev/null
+++ b/Wox.Plugin.SystemPlugins/SuggestionSources/Baidu.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Xml;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+using Newtonsoft.Json.Serialization;
+using Wox.Infrastructure;
+using YAMP.Numerics;
+
+namespace Wox.Plugin.SystemPlugins.SuggestionSources
+{
+    public class Baidu : AbstractSuggestionSource
+    {
+        Regex reg = new Regex("window.baidu.sug\\((.*)\\)");
+
+        public override List<string> GetSuggestions(string query)
+        {
+            try
+            {
+                var response =
+                    HttpRequest.CreateGetHttpResponse(
+                        "http://suggestion.baidu.com/su?json=1&wd=" + Uri.EscapeUriString(query), null,
+                        null, null);
+                var stream = response.GetResponseStream();
+
+                if (stream != null)
+                {
+                    var body = new StreamReader(stream, Encoding.GetEncoding("GB2312")).ReadToEnd();
+                    Match m = reg.Match(body);
+                    if (m.Success)
+                    {
+                        var json = JsonConvert.DeserializeObject(m.Groups[1].Value) as JContainer;
+                        if (json != null)
+                        {
+                            var results = json["s"] as JArray;
+                            if (results != null)
+                            {
+                                return results.OfType<JValue>().Select(o => o.Value).OfType<string>().ToList();
+                            }
+                        }
+                    }
+                }
+            }
+            catch
+            { }
+
+            return null;
+        }
+    }
+}
diff --git a/Wox.Plugin.SystemPlugins/SuggestionSources/SuggestionSourceFactory.cs b/Wox.Plugin.SystemPlugins/SuggestionSources/SuggestionSourceFactory.cs
new file mode 100644
index 0000000000..3262320b94
--- /dev/null
+++ b/Wox.Plugin.SystemPlugins/SuggestionSources/SuggestionSourceFactory.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Wox.Plugin.SystemPlugins.SuggestionSources
+{
+    public class SuggestionSourceFactory
+    {
+        public static ISuggestionSource GetSuggestionSource(string name)
+        {
+            switch (name.ToLower())
+            {
+                case "google":
+                    return new Google();
+
+                case "baidu":
+                    return new Baidu();
+
+                default:
+                    return null;
+            }
+        }
+    }
+}
diff --git a/Wox.Plugin.SystemPlugins/WebSearch/WebSearchPlugin.cs b/Wox.Plugin.SystemPlugins/WebSearch/WebSearchPlugin.cs
index b7afa08dd2..97fe4e505e 100644
--- a/Wox.Plugin.SystemPlugins/WebSearch/WebSearchPlugin.cs
+++ b/Wox.Plugin.SystemPlugins/WebSearch/WebSearchPlugin.cs
@@ -32,7 +32,7 @@ namespace Wox.Plugin.SystemPlugins
                     title = subtitle;
                     subtitle = null;
                 }
-                context.API.PushResults(query,context.CurrentPluginMetadata, new List<Result>()
+                context.API.PushResults(query, context.CurrentPluginMetadata, new List<Result>()
                 {
                     new Result()
                     {
@@ -48,24 +48,29 @@ namespace Wox.Plugin.SystemPlugins
                     }
                 });
 
-                if (!string.IsNullOrEmpty(keyword))
+                if (UserSettingStorage.Instance.EnableWebSearchSuggestion && !string.IsNullOrEmpty(keyword))
                 {
-                    ISuggestionSource sugg = new Google();
-                    var result = sugg.GetSuggestions(keyword);
-                    if (result != null)
+                    ISuggestionSource sugg = SuggestionSourceFactory.GetSuggestionSource(
+                            UserSettingStorage.Instance.WebSearchSuggestionSource);
+                    if (sugg != null)
                     {
-                        context.API.PushResults(query,context.CurrentPluginMetadata, result.Select(o => new Result()
+                        var result = sugg.GetSuggestions(keyword);
+                        if (result != null)
                         {
-                            Title = o,
-                            SubTitle = subtitle,
-                            Score = 5,
-                            IcoPath = webSearch.IconPath,
-                            Action = (c) =>
-                            {
-                                Process.Start(webSearch.Url.Replace("{q}", o));
-                                return true;
-                            }
-                        }).ToList());
+                            context.API.PushResults(query, context.CurrentPluginMetadata,
+                                result.Select(o => new Result()
+                                {
+                                    Title = o,
+                                    SubTitle = subtitle,
+                                    Score = 5,
+                                    IcoPath = webSearch.IconPath,
+                                    Action = (c) =>
+                                    {
+                                        Process.Start(webSearch.Url.Replace("{q}", o));
+                                        return true;
+                                    }
+                                }).ToList());
+                        }
                     }
                 }
             }
diff --git a/Wox.Plugin.SystemPlugins/WebSearch/WebSearchesSetting.xaml b/Wox.Plugin.SystemPlugins/WebSearch/WebSearchesSetting.xaml
index 419d350076..8e24a5993e 100644
--- a/Wox.Plugin.SystemPlugins/WebSearch/WebSearchesSetting.xaml
+++ b/Wox.Plugin.SystemPlugins/WebSearch/WebSearchesSetting.xaml
@@ -7,10 +7,16 @@
              d:DesignHeight="300" d:DesignWidth="300">
     <Grid Margin="10">
         <Grid.RowDefinitions>
-            <RowDefinition Height="*"/>
+            <RowDefinition Height="42"/>
+            <RowDefinition/>
             <RowDefinition Height="50"/>
         </Grid.RowDefinitions>
-        <ListView x:Name="webSearchView" Grid.Row="0">
+        <StackPanel Orientation="Horizontal" Grid.Row="0">
+            <CheckBox x:Name="cbEnableWebSearchSuggestion" Unchecked="CbEnableWebSearchSuggestion_OnUnchecked" Checked="CbEnableWebSearchSuggestion_OnChecked" Margin="0 10 10 10">Enable search suggestions</CheckBox>
+            <ComboBox x:Name="comboBoxSuggestionSource" SelectionChanged="ComboBoxSuggestionSource_OnSelectionChanged" Margin="10">
+            </ComboBox>
+        </StackPanel>
+        <ListView x:Name="webSearchView" Grid.Row="1">
             <ListView.View>
                 <GridView>
                     <GridViewColumn Header="ActionWord"  Width="180">
@@ -30,7 +36,7 @@
                 </GridView>
             </ListView.View>
         </ListView>
-        <StackPanel Grid.Row="1" HorizontalAlignment="Right" Orientation="Horizontal">
+        <StackPanel Grid.Row="2" HorizontalAlignment="Right" Orientation="Horizontal">
             <Button x:Name="btnDeleteWebSearch" Click="btnDeleteWebSearch_OnClick" Width="100" Margin="10" Content="Delete"/>
             <Button x:Name="btnEditWebSearch" Click="btnEditWebSearch_OnClick" Width="100" Margin="10" Content="Edit"/>
             <Button x:Name="btnAddWebSearch" Click="btnAddWebSearch_OnClick" Width="100" Margin="10" Content="Add"/>
diff --git a/Wox.Plugin.SystemPlugins/WebSearch/WebSearchesSetting.xaml.cs b/Wox.Plugin.SystemPlugins/WebSearch/WebSearchesSetting.xaml.cs
index 219b8b14fd..0df9622241 100644
--- a/Wox.Plugin.SystemPlugins/WebSearch/WebSearchesSetting.xaml.cs
+++ b/Wox.Plugin.SystemPlugins/WebSearch/WebSearchesSetting.xaml.cs
@@ -1,4 +1,6 @@
-using System.Windows;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows;
 using System.Windows.Controls;
 using Wox.Infrastructure.Storage.UserSettings;
 
@@ -19,6 +21,24 @@ namespace Wox.Plugin.SystemPlugins
         private void Setting_Loaded(object sender, RoutedEventArgs e)
         {
             webSearchView.ItemsSource = UserSettingStorage.Instance.WebSearches;
+            cbEnableWebSearchSuggestion.IsChecked = UserSettingStorage.Instance.EnableWebSearchSuggestion;
+            comboBoxSuggestionSource.Visibility = UserSettingStorage.Instance.EnableWebSearchSuggestion
+                ? Visibility.Visible
+                : Visibility.Collapsed;
+                
+            List<ComboBoxItem> items = new List<ComboBoxItem>()
+            {
+                new ComboBoxItem() {Content = "Google"},
+                new ComboBoxItem() {Content = "Bing" },
+                new ComboBoxItem() {Content = "Baidu"},
+            };
+            ComboBoxItem selected = items.FirstOrDefault(o => o.Content.ToString() == UserSettingStorage.Instance.WebSearchSuggestionSource);
+            if (selected == null)
+            {
+                selected = items[0];
+            }
+            comboBoxSuggestionSource.ItemsSource = items;
+            comboBoxSuggestionSource.SelectedItem = selected;
         }
 
         public void ReloadWebSearchView()
@@ -66,5 +86,24 @@ namespace Wox.Plugin.SystemPlugins
             }
         }
 
+        private void CbEnableWebSearchSuggestion_OnChecked(object sender, RoutedEventArgs e)
+        {
+            comboBoxSuggestionSource.Visibility = Visibility.Visible;
+            UserSettingStorage.Instance.EnableWebSearchSuggestion = true;
+            UserSettingStorage.Instance.Save();
+        }
+
+        private void CbEnableWebSearchSuggestion_OnUnchecked(object sender, RoutedEventArgs e)
+        {
+            comboBoxSuggestionSource.Visibility = Visibility.Collapsed;
+            UserSettingStorage.Instance.EnableWebSearchSuggestion = false;
+            UserSettingStorage.Instance.Save();
+        }
+
+        private void ComboBoxSuggestionSource_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
+        {
+            UserSettingStorage.Instance.WebSearchSuggestionSource = ((ComboBoxItem)e.AddedItems[0]).Content.ToString();
+            UserSettingStorage.Instance.Save();
+        }
     }
 }
diff --git a/Wox.Plugin.SystemPlugins/Wox.Plugin.SystemPlugins.csproj b/Wox.Plugin.SystemPlugins/Wox.Plugin.SystemPlugins.csproj
index 0c101e28f1..78a2e11d4d 100644
--- a/Wox.Plugin.SystemPlugins/Wox.Plugin.SystemPlugins.csproj
+++ b/Wox.Plugin.SystemPlugins/Wox.Plugin.SystemPlugins.csproj
@@ -79,6 +79,8 @@
     <Compile Include="Calculator.cs" />
     <Compile Include="Program\ProgramSources\FileSystemProgramSource.cs" />
     <Compile Include="Program\ProgramSources\UserStartMenuProgramSource.cs" />
+    <Compile Include="SuggestionSources\Baidu.cs" />
+    <Compile Include="SuggestionSources\SuggestionSourceFactory.cs" />
     <Compile Include="UrlPlugin.cs" />
     <Compile Include="WebSearch\WebSearchesSetting.xaml.cs">
       <DependentUpon>WebSearchesSetting.xaml</DependentUpon>
diff --git a/Wox/MainWindow.xaml.cs b/Wox/MainWindow.xaml.cs
index 077dd6bc11..321f1f7cdc 100644
--- a/Wox/MainWindow.xaml.cs
+++ b/Wox/MainWindow.xaml.cs
@@ -55,7 +55,6 @@ namespace Wox
         private string lastQuery;
         private ToolTip toolTip = new ToolTip();
 
-        private bool isCMDMode = false;
         private bool ignoreTextChange = false;
         #endregion
 
@@ -98,7 +97,7 @@ namespace Wox
         {
             Dispatcher.Invoke(new Action(() =>
             {
-                var m = new Msg {Owner = GetWindow(this)};
+                var m = new Msg { Owner = GetWindow(this) };
                 m.Show(title, subTitle, iconPath);
             }));
         }
@@ -324,8 +323,37 @@ namespace Wox
                             }
                         }, TimeSpan.FromSeconds(0), lastQuery);
                     }
-                }, TimeSpan.FromMilliseconds((isCMDMode = tbQuery.Text.StartsWith(">")) ? 0 : 150));
+                }, TimeSpan.FromMilliseconds(ShouldNotDelayQuery ? 0 : 150));
         }
+        private bool ShouldNotDelayQuery
+        {
+            get
+            {
+                return (bool)Dispatcher.Invoke(new Func<bool>(() =>
+                {
+                    return IsCMDMode || IsWebSearchMode;
+                }));
+            }
+        }
+
+        private bool IsCMDMode
+        {
+            get
+            {
+                return tbQuery.Text.StartsWith(">");
+            }
+        }
+
+        private bool IsWebSearchMode
+        {
+            get
+            {
+                Query q = new Query(tbQuery.Text);
+                return !UserSettingStorage.Instance.EnableWebSearchSuggestion &&
+     UserSettingStorage.Instance.WebSearches.Exists(o => o.ActionWord == q.ActionName && o.Enabled);
+            }
+        }
+
 
         private void Border_OnMouseDown(object sender, MouseButtonEventArgs e)
         {
@@ -446,11 +474,11 @@ namespace Wox
 
         private void updateCmdMode()
         {
-            var selected = resultCtrl.AcceptSelect();
-            if (selected != null)
+            var currentSelectedItem = resultCtrl.GetActiveResult();
+            if (currentSelectedItem != null)
             {
                 ignoreTextChange = true;
-                tbQuery.Text = ">" + selected.Title;
+                tbQuery.Text = ">" + currentSelectedItem.Title;
                 tbQuery.CaretIndex = tbQuery.Text.Length;
             }
         }
@@ -468,41 +496,41 @@ namespace Wox
 
                 case Key.Down:
                     resultCtrl.SelectNext();
-                    if (isCMDMode) updateCmdMode();
+                    if (IsCMDMode) updateCmdMode();
                     toolTip.IsOpen = false;
                     e.Handled = true;
                     break;
 
                 case Key.Up:
                     resultCtrl.SelectPrev();
-                    if (isCMDMode) updateCmdMode();
+                    if (IsCMDMode) updateCmdMode();
                     toolTip.IsOpen = false;
                     e.Handled = true;
                     break;
 
                 case Key.PageDown:
                     resultCtrl.SelectNextPage();
-                    if (isCMDMode) updateCmdMode();
+                    if (IsCMDMode) updateCmdMode();
                     toolTip.IsOpen = false;
                     e.Handled = true;
                     break;
 
                 case Key.PageUp:
                     resultCtrl.SelectPrevPage();
-                    if (isCMDMode) updateCmdMode();
+                    if (IsCMDMode) updateCmdMode();
                     toolTip.IsOpen = false;
                     e.Handled = true;
                     break;
 
                 case Key.Enter:
-                    AcceptSelect(resultCtrl.AcceptSelect());
+                    AcceptSelect(resultCtrl.GetActiveResult());
                     e.Handled = true;
                     break;
 
                 case Key.Back:
                     if (BackKeyDownEvent != null)
                     {
-                        BackKeyDownEvent(tbQuery,new WoxKeyDownEventArgs()
+                        BackKeyDownEvent(tbQuery, new WoxKeyDownEventArgs()
                         {
                             Query = tbQuery.Text,
                             keyEventArgs = e
@@ -511,7 +539,7 @@ namespace Wox
                     break;
 
                 case Key.Tab:
-                    AcceptSelect(resultCtrl.AcceptSelect());
+                    AcceptSelect(resultCtrl.GetActiveResult());
                     e.Handled = true;
                     break;
             }
@@ -559,7 +587,7 @@ namespace Wox
                     List<Result> l = waitShowResultList.Where(o => o.OriginQuery != null && o.OriginQuery.RawQuery == lastQuery).ToList();
                     waitShowResultList.Clear();
                     resultCtrl.AddResults(l);
-                })), TimeSpan.FromMilliseconds(isCMDMode ? 0 : 50));
+                })), TimeSpan.FromMilliseconds(ShouldNotDelayQuery ? 0 : 50));
             }
         }
 
diff --git a/Wox/ResultPanel.xaml.cs b/Wox/ResultPanel.xaml.cs
index b55c75a6c8..b65ae4f42d 100644
--- a/Wox/ResultPanel.xaml.cs
+++ b/Wox/ResultPanel.xaml.cs
@@ -126,7 +126,7 @@ namespace Wox
             }
         }
 
-        public Result AcceptSelect()
+        public Result GetActiveResult()
         {
             int index = lbResults.SelectedIndex;
             if (index < 0) return null;