diff --git a/Libplanet.Tests/Libplanet.Tests.csproj b/Libplanet.Tests/Libplanet.Tests.csproj
index e263eef87cb..24d6e9369f6 100644
--- a/Libplanet.Tests/Libplanet.Tests.csproj
+++ b/Libplanet.Tests/Libplanet.Tests.csproj
@@ -6,6 +6,10 @@
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
 
+  <PropertyGroup>
+    <CodeAnalysisRuleSet>..\StyleCop.Analyzers.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.8.0" />
     <PackageReference Include="xunit" Version="2.3.1" />
@@ -15,4 +19,8 @@
   <ItemGroup>
     <ProjectReference Include="..\Libplanet\Libplanet.csproj" />
   </ItemGroup>
+
+  <ItemGroup>
+    <AdditionalFiles Include="..\stylecop.json" />
+  </ItemGroup>
 </Project>
diff --git a/Libplanet/Libplanet.csproj b/Libplanet/Libplanet.csproj
index ac803a39457..e796b17181c 100644
--- a/Libplanet/Libplanet.csproj
+++ b/Libplanet/Libplanet.csproj
@@ -4,7 +4,17 @@
     <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
     <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
   </PropertyGroup>
+  <PropertyGroup>
+    <CodeAnalysisRuleSet>..\StyleCop.Analyzers.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="BouncyCastle.NetCore" Version="1.8.3" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.0.2">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+  <ItemGroup>
+    <AdditionalFiles Include="..\stylecop.json" />
   </ItemGroup>
 </Project>
diff --git a/StyleCop.Analyzers.ruleset b/StyleCop.Analyzers.ruleset
new file mode 100644
index 00000000000..1601639094f
--- /dev/null
+++ b/StyleCop.Analyzers.ruleset
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RuleSet Name="Rules for Libplanet" Description="Code analysis rules for Libplanet.csproj." ToolsVersion="10.0">
+ <Rules AnalyzerId="Microsoft.Analyzers.ManagedCodeAnalysis" RuleNamespace="Microsoft.Rules.Managed">
+   <Rule Id="SA1633" Action="None" />
+   <Rule Id="SA1652" Action="None" />
+   <Rule Id="SA1309" Action="None" />
+ </Rules>
+</RuleSet>
diff --git a/stylecop.json b/stylecop.json
new file mode 100644
index 00000000000..15244466230
--- /dev/null
+++ b/stylecop.json
@@ -0,0 +1,8 @@
+{
+    "$schema": "https://raw.githubusercontent.com/DotNetAnalyzers/StyleCopAnalyzers/master/StyleCop.Analyzers/StyleCop.Analyzers/Settings/stylecop.schema.json",
+    "settings": {
+        "orderingRules": {
+            "usingDirectivesPlacement": "outsideNamespace"
+        }
+    }
+}