diff --git a/app/src/main/java/org/fcitx/fcitx5/android/FcitxApplication.kt b/app/src/main/java/org/fcitx/fcitx5/android/FcitxApplication.kt
index 31c35429..2e9085d6 100644
--- a/app/src/main/java/org/fcitx/fcitx5/android/FcitxApplication.kt
+++ b/app/src/main/java/org/fcitx/fcitx5/android/FcitxApplication.kt
@@ -14,6 +14,7 @@ import android.content.res.Configuration
 import android.os.Build
 import android.os.Process
 import android.util.Log
+import androidx.core.content.ContextCompat
 import androidx.core.content.edit
 import androidx.preference.PreferenceManager
 import kotlinx.coroutines.CoroutineName
@@ -59,6 +60,18 @@ class FcitxApplication : Application() {
         }
     }
 
+    private val restartFcitxInstanceReceiver = object : BroadcastReceiver() {
+        override fun onReceive(context: Context, intent: Intent) {
+            if (intent.action != ACTION_RESTART_FCITX_INSTANCE) return
+            if (FcitxDaemon.getFirstConnectionOrNull() != null) {
+                Timber.i("Received broadcast '${intent.action}', try to restart fcitx instance ...")
+                FcitxDaemon.restartFcitx()
+            } else {
+                Timber.i("Received broadcast '${intent.action}', but there's no fcitx instance")
+            }
+        }
+    }
+
     var isDirectBootMode = false
         private set
 
@@ -140,6 +153,14 @@ class FcitxApplication : Application() {
             AppPrefs.getInstance().syncToDeviceEncryptedStorage()
             ThemeManager.syncToDeviceEncryptedStorage()
         }
+        ContextCompat.registerReceiver(
+            this,
+            restartFcitxInstanceReceiver,
+            IntentFilter(ACTION_RESTART_FCITX_INSTANCE),
+            PERMISSION_TEST_INPUT_METHOD,
+            null,
+            ContextCompat.RECEIVER_EXPORTED
+        )
     }
 
     override fun onConfigurationChanged(newConfig: Configuration) {
@@ -156,5 +177,21 @@ class FcitxApplication : Application() {
 
         fun getLastPid() = lastPid
         private const val MAX_STACKTRACE_SIZE = 128000
+
+        const val ACTION_RESTART_FCITX_INSTANCE =
+            "${BuildConfig.APPLICATION_ID}.action.RESTART_FCITX_INSTANCE"
+
+        /**
+         * This permission is requested by com.android.shell, makes it possible to restart
+         * fcitx instance from `adb shell am` command:
+         * ```sh
+         * adb shell am broadcast -a org.fcitx.fcitx5.android.action.RESTART_FCITX_INSTANCE
+         * ```
+         * https://android.googlesource.com/platform/frameworks/base/+/refs/tags/android-7.0.0_r1/packages/Shell/AndroidManifest.xml#67
+         *
+         * other candidate: android.permission.TEST_INPUT_METHOD requires Android 14
+         * https://android.googlesource.com/platform/frameworks/base/+/refs/tags/android-14.0.0_r1/packages/Shell/AndroidManifest.xml#628
+         */
+        const val PERMISSION_TEST_INPUT_METHOD = "android.permission.READ_INPUT_STATE"
     }
 }
\ No newline at end of file