diff --git a/android-app/app/src/main/AndroidManifest.xml b/android-app/app/src/main/AndroidManifest.xml
index bcd96f4..ba5d0e4 100644
--- a/android-app/app/src/main/AndroidManifest.xml
+++ b/android-app/app/src/main/AndroidManifest.xml
@@ -10,6 +10,8 @@
 
     <application
         android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:label="USB摄像头"
         android:theme="@style/Theme.AppCompat.Light.NoActionBar">
 
diff --git a/android-app/app/src/main/res/drawable/ic_launcher_background.xml b/android-app/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..191b6b3
--- /dev/null
+++ b/android-app/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 图标背景：深蓝渐变 -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+
+    <path
+        android:fillColor="#1B2838"
+        android:pathData="M0,0 L108,0 L108,108 L0,108 Z" />
+
+    <!-- 装饰：对角线条纹 -->
+    <path
+        android:fillColor="#22374D"
+        android:pathData="M0,90 L90,0 L108,0 L108,18 L18,108 L0,108 Z" />
+    <path
+        android:fillColor="#22374D"
+        android:pathData="M0,60 L60,0 L72,0 L0,72 Z" />
+
+</vector>
diff --git a/android-app/app/src/main/res/drawable/ic_launcher_foreground.xml b/android-app/app/src/main/res/drawable/ic_launcher_foreground.xml
new file mode 100644
index 0000000..7515494
--- /dev/null
+++ b/android-app/app/src/main/res/drawable/ic_launcher_foreground.xml
@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 图标前景：摄像头 + 信封组合 -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+
+    <!-- 摄像头机身 -->
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M34,40 L74,40 C76.2,40 78,41.8 78,44 L78,68 C78,70.2 76.2,72 74,72 L34,72 C31.8,72 30,70.2 30,68 L30,44 C30,41.8 31.8,40 34,40 Z" />
+
+    <!-- 摄像头镜头外圈 -->
+    <path
+        android:fillColor="#1B2838"
+        android:pathData="M54,48 m-11,0 a11,11 0,1 1,22 0 a11,11 0,1 1,-22 0" />
+
+    <!-- 摄像头镜头内圈 -->
+    <path
+        android:fillColor="#42A5F5"
+        android:pathData="M54,48 m-7,0 a7,7 0,1 1,14 0 a7,7 0,1 1,-14 0" />
+
+    <!-- 镜头高光 -->
+    <path
+        android:fillColor="#90CAF9"
+        android:pathData="M50,45 m-2,0 a2,2 0,1 1,4 0 a2,2 0,1 1,-4 0" />
+
+    <!-- 闪光灯 -->
+    <path
+        android:fillColor="#FFD54F"
+        android:pathData="M68,44 m-2,0 a2,2 0,1 1,4 0 a2,2 0,1 1,-4 0" />
+
+    <!-- 信封图标（右下角） -->
+    <path
+        android:fillColor="#FFFFFF"
+        android:pathData="M60,62 L76,62 C77.1,62 78,62.9 78,64 L78,72 C78,73.1 77.1,74 76,74 L60,74 C58.9,74 58,73.1 58,72 L58,64 C58,62.9 58.9,62 60,62 Z" />
+    <path
+        android:pathData="M58,63 L68,69 L78,63"
+        android:strokeWidth="1.2"
+        android:strokeColor="#1B2838"
+        android:fillColor="#00000000" />
+
+</vector>
diff --git a/android-app/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/android-app/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..6b78462
--- /dev/null
+++ b/android-app/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
diff --git a/android-app/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/android-app/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000..6b78462
--- /dev/null
+++ b/android-app/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>