diff --git a/app/src/main/res/layout/dialog_page_key.xml b/app/src/main/res/layout/dialog_page_key.xml
index ebcc8af7f..8c5b7a1fa 100644
--- a/app/src/main/res/layout/dialog_page_key.xml
+++ b/app/src/main/res/layout/dialog_page_key.xml
@@ -44,6 +44,13 @@
 
     </io.legado.app.ui.widget.text.TextInputLayout>
 
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="5dp"
+        android:textColor="@color/secondaryText"
+        android:text="@string/page_key_set_help" />
+
     <TextView
         android:id="@+id/tv_ok"
         android:layout_width="match_parent"
diff --git a/app/src/main/res/values-zh-rHK/strings.xml b/app/src/main/res/values-zh-rHK/strings.xml
index 1e6a0da5b..d5d78e8a8 100644
--- a/app/src/main/res/values-zh-rHK/strings.xml
+++ b/app/src/main/res/values-zh-rHK/strings.xml
@@ -769,5 +769,6 @@
     <string name="search_content">全文搜索</string>
     <string name="rss_source_empty">关注公众号[开源阅读]获取订阅源!</string>
     <string name="explore_empty">当前没有发现源,关注公众号[开源阅读]添加带发现的书源!</string>
+    <string name="page_key_set_help">将焦点放到输入框按下物理按键会自动录入键值,多个按键会自动用英文逗号隔开.</string>
 
 </resources>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index e30d9bddf..16a4e98a8 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -769,5 +769,6 @@
     <string name="search_content">全文搜尋</string>
     <string name="rss_source_empty">關注公眾號[开源阅读]獲取訂閱源!</string>
     <string name="explore_empty">目前沒有發現源,關注公眾號[开源阅读]添加包含發現的書源!</string>
+    <string name="page_key_set_help">将焦点放到输入框按下物理按键会自动录入键值,多个按键会自动用英文逗号隔开.</string>
 
 </resources>
diff --git a/app/src/main/res/values-zh/strings.xml b/app/src/main/res/values-zh/strings.xml
index 270f502de..a8d2982f2 100644
--- a/app/src/main/res/values-zh/strings.xml
+++ b/app/src/main/res/values-zh/strings.xml
@@ -772,5 +772,6 @@
     <string name="search_content">全文搜索</string>
     <string name="rss_source_empty">关注公众号[开源阅读]获取订阅源!</string>
     <string name="explore_empty">当前没有发现源,关注公众号[开源阅读]添加带发现的书源!</string>
+    <string name="page_key_set_help">将焦点放到输入框按下物理按键会自动录入键值,多个按键会自动用英文逗号隔开.</string>
 
 </resources>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7c257fcfc..e132ccf76 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -775,5 +775,6 @@
     <string name="search_content">Search content</string>
     <string name="rss_source_empty">关注公众号[开源阅读]获取订阅源!</string>
     <string name="explore_empty">当前没有发现源,关注公众号[开源阅读]添加带发现的书源!</string>
+    <string name="page_key_set_help">将焦点放到输入框按下物理按键会自动录入键值,多个按键会自动用英文逗号隔开.</string>
 
 </resources>