diff --git a/app/src/main/java/com/osfans/trime/ime/keyboard/CommonKeyboardActionListener.kt b/app/src/main/java/com/osfans/trime/ime/keyboard/CommonKeyboardActionListener.kt
index a187c89a48..de9cf58e3f 100644
--- a/app/src/main/java/com/osfans/trime/ime/keyboard/CommonKeyboardActionListener.kt
+++ b/app/src/main/java/com/osfans/trime/ime/keyboard/CommonKeyboardActionListener.kt
@@ -297,6 +297,15 @@ class CommonKeyboardActionListener(
 
                     when (keyEventCode) {
                         KeyEvent.KEYCODE_BACK -> service.requestHideSelf(0)
+                        else -> {
+                            // 小键盘自动增加锁定
+                            if (keyEventCode in KeyEvent.KEYCODE_NUMPAD_0..KeyEvent.KEYCODE_NUMPAD_EQUALS) {
+                                service.sendDownUpKeyEvent(
+                                    keyEventCode,
+                                    metaState or KeyEvent.META_NUM_LOCK_ON,
+                                )
+                            }
+                        }
                     }
                 }
             }