diff --git a/build.gradle b/build.gradle
index 121599a..a79bef7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -40,6 +40,8 @@ intellij {
     if ('IC' == ideTypeStr || 'IU' == ideTypeStr) {
         plugins.add('java')
         plugins.add('org.jetbrains.kotlin')
+    } else if ('CL' == ideTypeStr) {
+        plugins.add('com.intellij.clion-swift:201.6668.126')
     }
     if (!ideTypeStr.endsWith('C')) {
         plugins.add('JavaScript')
diff --git a/src/main/clion/io/github/linwancen/plugin/show/lang/SwiftLangDoc.java b/src/main/clion/io/github/linwancen/plugin/show/lang/SwiftLangDoc.java
new file mode 100644
index 0000000..58ba60e
--- /dev/null
+++ b/src/main/clion/io/github/linwancen/plugin/show/lang/SwiftLangDoc.java
@@ -0,0 +1,37 @@
+package io.github.linwancen.plugin.show.lang;
+
+import com.intellij.psi.PsiElement;
+import com.jetbrains.cidr.lang.psi.OCReferenceElement;
+import com.jetbrains.swift.SwiftLanguage;
+import com.jetbrains.swift.psi.SwiftReferenceElement;
+import io.github.linwancen.plugin.show.bean.LineInfo;
+import io.github.linwancen.plugin.show.bean.SettingsInfo;
+import io.github.linwancen.plugin.show.lang.base.BaseLangDoc;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.List;
+
+public class SwiftLangDoc extends BaseLangDoc {
+
+    static {
+        LANG_DOC_MAP.put(SwiftLanguage.INSTANCE.getID(), new SwiftLangDoc());
+    }
+
+    @Override
+    public @NotNull List<Class<? extends PsiElement>> getRefClass() {
+        // guess
+        return List.of(SwiftReferenceElement.class);
+    }
+
+    @Override
+    public boolean show(@NotNull LineInfo info) {
+        return info.appSettings.showLineEndCommentSwiftBase;
+    }
+
+    @Override
+    protected @Nullable <T extends SettingsInfo> String resolveDocPrint(@NotNull T info, @NotNull PsiElement resolve) {
+        // Copy from C
+        return super.resolveDocPrint(info, resolve.getParent());
+    }
+}
diff --git a/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsComponent.java b/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsComponent.java
index ae33f1b..2e28f17 100644
--- a/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsComponent.java
+++ b/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsComponent.java
@@ -35,6 +35,7 @@ public class AppSettingsComponent {
     private final JBCheckBox showLineEndCommentGoBase = new JBCheckBox("// Go ");
     private final JBCheckBox showLineEndCommentRustBase = new JBCheckBox("// Rust ");
     private final JBCheckBox showLineEndCommentCBase = new JBCheckBox("// C ");
+    private final JBCheckBox showLineEndCommentSwiftBase = new JBCheckBox("// Swift ");
     private final JBCheckBox showLineEndCommentSql = new JBCheckBox("    sql ");
     private final JBCheckBox showLineEndCommentJson = new JBCheckBox("    json ");
     private final JBTextField lineTags = new JBTextField();
@@ -82,7 +83,8 @@ public class AppSettingsComponent {
                         showLineEndCommentPhpBase,
                         showLineEndCommentPyBase,
                         showLineEndCommentRustBase,
-                        showLineEndCommentCBase
+                        showLineEndCommentCBase,
+                        showLineEndCommentSwiftBase
                 ), 1)
                 .addLabeledComponent(new JBLabel(ShowBundle.message("tree.tags")), treeTags, 1, true)
                 .addLabeledComponent(new JBLabel(ShowBundle.message("line.tags")), lineTags, 1, true)
@@ -278,6 +280,14 @@ public class AppSettingsComponent {
         showLineEndCommentCBase.setSelected(newStatus);
     }
 
+    public boolean getShowLineEndCommentSwiftBase() {
+        return showLineEndCommentSwiftBase.isSelected();
+    }
+
+    public void setShowLineEndCommentSwiftBase(boolean newStatus) {
+        showLineEndCommentSwiftBase.setSelected(newStatus);
+    }
+
     public boolean getShowLineEndCommentSql() {
         return showLineEndCommentSql.isSelected();
     }
diff --git a/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsConfigurable.java b/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsConfigurable.java
index f6cf5e9..7fd9e0d 100644
--- a/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsConfigurable.java
+++ b/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsConfigurable.java
@@ -55,6 +55,7 @@ public class AppSettingsConfigurable implements Configurable {
         modified |= mySettingsComponent.getShowLineEndCommentGoBase() != settings.showLineEndCommentGoBase;
         modified |= mySettingsComponent.getShowLineEndCommentRustBase() != settings.showLineEndCommentRustBase;
         modified |= mySettingsComponent.getShowLineEndCommentCBase() != settings.showLineEndCommentCBase;
+        modified |= mySettingsComponent.getShowLineEndCommentSwiftBase() != settings.showLineEndCommentSwiftBase;
         modified |= mySettingsComponent.getShowLineEndCommentSql() != settings.showLineEndCommentSql;
         modified |= mySettingsComponent.getShowLineEndCommentJson() != settings.showLineEndCommentJson;
 
@@ -98,6 +99,7 @@ public class AppSettingsConfigurable implements Configurable {
         settings.showLineEndCommentGoBase = mySettingsComponent.getShowLineEndCommentGoBase();
         settings.showLineEndCommentRustBase = mySettingsComponent.getShowLineEndCommentRustBase();
         settings.showLineEndCommentCBase = mySettingsComponent.getShowLineEndCommentCBase();
+        settings.showLineEndCommentSwiftBase = mySettingsComponent.getShowLineEndCommentSwiftBase();
         settings.showLineEndCommentSql = mySettingsComponent.getShowLineEndCommentSql();
         settings.showLineEndCommentJson = mySettingsComponent.getShowLineEndCommentJson();
 
@@ -144,6 +146,7 @@ public class AppSettingsConfigurable implements Configurable {
         mySettingsComponent.setShowLineEndCommentGoBase(settings.showLineEndCommentGoBase);
         mySettingsComponent.setShowLineEndCommentRustBase(settings.showLineEndCommentRustBase);
         mySettingsComponent.setShowLineEndCommentCBase(settings.showLineEndCommentCBase);
+        mySettingsComponent.setShowLineEndCommentSwiftBase(settings.showLineEndCommentSwiftBase);
         mySettingsComponent.setShowLineEndCommentSql(settings.showLineEndCommentSql);
         mySettingsComponent.setShowLineEndCommentJson(settings.showLineEndCommentJson);
 
diff --git a/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsState.java b/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsState.java
index d30f4d1..410d2f7 100644
--- a/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsState.java
+++ b/src/main/java/io/github/linwancen/plugin/show/settings/AppSettingsState.java
@@ -43,6 +43,7 @@ public class AppSettingsState implements PersistentStateComponent<AppSettingsSta
     public boolean showLineEndCommentGoBase = false;
     public boolean showLineEndCommentRustBase = true;
     public boolean showLineEndCommentCBase = true;
+    public boolean showLineEndCommentSwiftBase = true;
     public boolean showLineEndCommentSql = true;
     public boolean showLineEndCommentJson = true;
 
diff --git a/src/main/other_lang_class/io/github/linwancen/plugin/show/lang/SwiftLangDoc.class b/src/main/other_lang_class/io/github/linwancen/plugin/show/lang/SwiftLangDoc.class
new file mode 100644
index 0000000..cd06174
Binary files /dev/null and b/src/main/other_lang_class/io/github/linwancen/plugin/show/lang/SwiftLangDoc.class differ
diff --git a/src/main/resources/META-INF/plugin.xml b/src/main/resources/META-INF/plugin.xml
index 287029f..a191739 100644
--- a/src/main/resources/META-INF/plugin.xml
+++ b/src/main/resources/META-INF/plugin.xml
@@ -122,13 +122,15 @@ Show doc comment at the Project view Tree, line End, json, other
   <depends optional="true" config-file="kotlin.xml">org.jetbrains.kotlin</depends>
   <depends optional="true" config-file="sql.xml">com.intellij.database</depends>
   <depends optional="true" config-file="js.xml">JavaScript</depends>
+  <depends optional="true" config-file="php.xml">com.jetbrains.php</depends>
   <depends optional="true" config-file="python.xml">com.intellij.modules.python</depends>
   <depends optional="true" config-file="go.xml">org.jetbrains.plugins.go</depends>
   <!-- old version -->
   <depends optional="true" config-file="rust_old.xml">org.rust.lang</depends>
+  <!--suppress PluginXmlValidity -->
   <depends optional="true" config-file="rust.xml">com.jetbrains.rust</depends>
   <depends optional="true" config-file="c.xml">com.intellij.modules.c-capable</depends>
-  <depends optional="true" config-file="php.xml">com.jetbrains.php</depends>
+  <depends optional="true" config-file="swift.xml">com.intellij.modules.swift-capable</depends>
   <!--suppress PluginXmlValidity, MybatisMapperXmlInspection -->
   <!--<depends optional="true" config-file="cs.xml">com.intellij.modules.rider</depends>-->
 
diff --git a/src/main/resources/META-INF/swift.xml b/src/main/resources/META-INF/swift.xml
new file mode 100644
index 0000000..ef83092
--- /dev/null
+++ b/src/main/resources/META-INF/swift.xml
@@ -0,0 +1,5 @@
+<idea-plugin>
+  <extensions defaultExtensionNs="com.intellij">
+    <editor.linePainter implementation="io.github.linwancen.plugin.show.lang.SwiftLangDoc"/>
+  </extensions>
+</idea-plugin>
\ No newline at end of file