diff --git a/Mageki/Mageki/Drawables/Lever.cs b/Mageki/Mageki/Drawables/Lever.cs
index 23c607d..c9167ec 100644
--- a/Mageki/Mageki/Drawables/Lever.cs
+++ b/Mageki/Mageki/Drawables/Lever.cs
@@ -61,12 +61,22 @@ public float Value
             get => GetValue(default(float));
             set
             {
-                if (value < -1) value = -1;
-                else if (value > 1) value = 1;
+                if (value < -1)
+                {
+                    valueOverflow += value + 1;
+                    value = -1;
+                }
+                else if (value > 1)
+                {
+                    valueOverflow += value - 1;
+                    value = 1;
+                }
                 SetValueWithNotify(value);
             }
         }
 
+        public float valueOverflow = 0;
+
         private SKPath capTopPath = new SKPath();
         private SKPath capSidePath = new SKPath();
         private SKPath holePath = new SKPath();
@@ -344,8 +354,26 @@ public override bool HandleTouchMoved(long id, SKPoint point)
                                 sum = max;
                             }
 
-                            var diff = sum / (boundingBox.Width / 2 - Padding.X);
-                            Value += diff * Settings.LeverSensitivity;
+                            var diffPx = sum / (boundingBox.Width / 2 - Padding.X);
+                            var diff = diffPx * Settings.LeverSensitivity;
+                            // 如果溢出值有剩余优先抵消溢出值
+                            if(valueOverflow * diff < 0)
+                            {
+                                if(Math.Abs(valueOverflow) < Math.Abs(diff))
+                                {
+                                    diff += valueOverflow;
+                                    valueOverflow = 0;
+                                }
+                                else
+                                {
+                                    valueOverflow += diff;
+                                    diff = 0;
+                                }
+                            }
+                            if(diff != 0)
+                            {
+                                Value += diff;
+                            }
 
                             moveCache.Clear();
                         }
@@ -357,5 +385,11 @@ public override bool HandleTouchMoved(long id, SKPoint point)
 
             return base.HandleTouchMoved(id, point);
         }
+
+        public override void HandleTouchReleased(long id)
+        {
+            base.HandleTouchReleased(id);
+            if (touchPoints.Count == 0) valueOverflow = 0;
+        }
     }
 }
\ No newline at end of file