diff --git a/qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java b/qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java
index 9a68c9f7..5ed0d1b3 100644
--- a/qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java
+++ b/qmui/src/main/java/com/qmuiteam/qmui/nestedScroll/QMUIContinuousNestedScrollLayout.java
@@ -440,9 +440,12 @@ public class QMUIContinuousNestedScrollLayout extends CoordinatorLayout implemen
     }
 
     public int getOffsetRange() {
-        if (mTopView == null || mBottomView == null) {
+        if (mTopView == null && mBottomView == null) {
             return 0;
         }
+        if(mBottomView == null){
+            return Math.max(0, ((View) mTopView).getHeight() - getHeight());
+        }
         int contentHeight = mBottomView.getContentHeight();
         if (contentHeight != IQMUIContinuousNestedBottomView.HEIGHT_IS_ENOUGH_TO_SCROLL) {
             return Math.max(0, ((View) mTopView).getHeight() + contentHeight - getHeight());