diff --git a/shadowsocks-csharp/Model/Configuration.cs b/shadowsocks-csharp/Model/Configuration.cs
index 35ee5235..cf506072 100755
--- a/shadowsocks-csharp/Model/Configuration.cs
+++ b/shadowsocks-csharp/Model/Configuration.cs
@@ -24,6 +24,7 @@ namespace Shadowsocks.Model
         public bool useOnlinePac;
         public bool availabilityStatistics;
         public bool autoCheckUpdate;
+        public LogViewerConfig logViewer;
 
         private static string CONFIG_FILE = "gui-config.json";
 
diff --git a/shadowsocks-csharp/Model/LogViewerConfig.cs b/shadowsocks-csharp/Model/LogViewerConfig.cs
new file mode 100644
index 00000000..28471084
--- /dev/null
+++ b/shadowsocks-csharp/Model/LogViewerConfig.cs
@@ -0,0 +1,63 @@
+using System;
+using System.Drawing;
+
+namespace Shadowsocks.Model
+{
+    [Serializable]
+    public class LogViewerConfig
+    {
+        public string fontName;
+        public float fontSize;
+        public string bgColor;
+        public string textColor;
+        public bool topMost;
+        public bool wrapText;
+        public bool toolbarShown;
+
+        public LogViewerConfig()
+        {
+            this.fontName = "Console";
+            this.fontSize = 8;
+            this.bgColor = "black";
+            this.textColor = "white";
+            this.topMost = false;
+            this.wrapText = false;
+            this.toolbarShown = false;
+        }
+
+        public Color GetBackgroundColor()
+        {
+            try
+            {
+                return ColorTranslator.FromHtml(bgColor);
+            }
+            catch (Exception)
+            {
+                return ColorTranslator.FromHtml("black");
+            }
+        }
+
+        public void SetBackgroundColor(Color color)
+        {
+            bgColor = ColorTranslator.ToHtml(color);
+        }
+
+        public Color GetTextColor()
+        {
+            try
+            {
+                return ColorTranslator.FromHtml(textColor);
+            }
+            catch (Exception)
+            {
+                return ColorTranslator.FromHtml("white");
+                throw;
+            }
+        }
+
+        public void SetTextColor(Color color)
+        {
+            textColor = ColorTranslator.ToHtml(color);
+        }
+    }
+}
diff --git a/shadowsocks-csharp/View/LogForm.cs b/shadowsocks-csharp/View/LogForm.cs
index c906b7d5..ab16faf0 100644
--- a/shadowsocks-csharp/View/LogForm.cs
+++ b/shadowsocks-csharp/View/LogForm.cs
@@ -18,6 +18,7 @@ namespace Shadowsocks.View
         string filename;
         Timer timer;
         const int BACK_OFFSET = 65536;
+        Model.Configuration config;
 
         public LogForm(string filename)
         {
@@ -25,6 +26,21 @@ namespace Shadowsocks.View
             InitializeComponent();
             this.Icon = Icon.FromHandle(Resources.ssw128.GetHicon());
 
+            config = Model.Configuration.Load();
+            if (config.logViewer == null)
+            {
+                config.logViewer = new Model.LogViewerConfig();
+            }
+            else
+            {
+                topMostTrigger = config.logViewer.topMost;
+                wrapTextTrigger = config.logViewer.wrapText;
+                toolbarTrigger = config.logViewer.toolbarShown;
+                LogMessageTextBox.Font = new Font(config.logViewer.fontName, config.logViewer.fontSize);
+                LogMessageTextBox.BackColor = config.logViewer.GetBackgroundColor();
+                LogMessageTextBox.ForeColor = config.logViewer.GetTextColor();
+            }
+
             UpdateTexts();
         }
 
@@ -103,14 +119,29 @@ namespace Shadowsocks.View
             timer.Interval = 300;
             timer.Tick += Timer_Tick;
             timer.Start();
+
+            topMostTriggerLock = true;
             this.TopMost = TopMostMenuItem.Checked = TopMostCheckBox.Checked = topMostTrigger;
-            LogMessageTextBox.WordWrap = WrapTextCheckBox.Checked = WrapTextMenuItem.Checked = wrapTextTrigger;
-            ToolbarFlowLayoutPanel.Visible = toolbarTrigger;
+            topMostTriggerLock = false;
+
+            wrapTextTriggerLock = true;
+            LogMessageTextBox.WordWrap = WrapTextMenuItem.Checked = WrapTextCheckBox.Checked = wrapTextTrigger;
+            wrapTextTriggerLock = false;
+
+            ToolbarFlowLayoutPanel.Visible = ShowToolbarMenuItem.Checked = toolbarTrigger;
         }
 
         private void LogForm_FormClosing(object sender, FormClosingEventArgs e)
         {
             timer.Stop();
+            config.logViewer.topMost = topMostTrigger;
+            config.logViewer.wrapText = wrapTextTrigger;
+            config.logViewer.toolbarShown = toolbarTrigger;
+            config.logViewer.fontName = LogMessageTextBox.Font.Name;
+            config.logViewer.fontSize = LogMessageTextBox.Font.Size;
+            config.logViewer.SetBackgroundColor(LogMessageTextBox.BackColor);
+            config.logViewer.SetTextColor(LogMessageTextBox.ForeColor);
+            Model.Configuration.Save(config);
         }
 
         private void OpenLocationMenuItem_Click(object sender, EventArgs e)
@@ -243,6 +274,7 @@ namespace Shadowsocks.View
         #endregion
 
         private bool toolbarTrigger = false;
+
         private void ShowToolbarMenuItem_Click(object sender, EventArgs e)
         {
             toolbarTrigger = !toolbarTrigger;
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index 8200aa07..dd957ffb 100644
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -145,6 +145,7 @@
     <Compile Include="Encryption\TableEncryptor.cs" />
     <Compile Include="Encryption\IEncryptor.cs" />
     <Compile Include="Controller\Service\PACServer.cs" />
+    <Compile Include="Model\LogViewerConfig.cs" />
     <Compile Include="Model\Server.cs" />
     <Compile Include="Model\Configuration.cs" />
     <Compile Include="Properties\Resources.Designer.cs">