diff --git a/packages/fineui/src/core/utils/dom.js b/packages/fineui/src/core/utils/dom.js
index df573a746..216587ec3 100644
--- a/packages/fineui/src/core/utils/dom.js
+++ b/packages/fineui/src/core/utils/dom.js
@@ -66,10 +66,10 @@ export function preloadImages(srcArray, onload) {
     each(srcArray, (i, src) => {
         images[i] = new Image();
         images[i].src = src;
-        images[i].onload = function() {
+        images[i].onload = function () {
             complete();
         };
-        images[i].onerror = function() {
+        images[i].onerror = function () {
             complete();
         };
     });
@@ -741,8 +741,14 @@ export function getComboPosition(combo, popup, extraWidth, extraHeight, needAdap
         default:
             break;
     }
-    if (needAdaptHeight === true) {
-        popup.resetHeight && popup.resetHeight(Math.min(viewportBounds.height - position.top - (positionRelativeElement ? positionRelativeElement.getBoundingClientRect().top : 0), maxHeight));
+    if (needAdaptHeight === true && popup.resetHeight) {
+        const comboRect = combo.element[0].getBoundingClientRect();
+        const relativeOffset = positionRelativeElement ? positionRelativeElement.getBoundingClientRect().top : 0;
+        if (position.top < comboRect.top) {
+            popup.resetHeight(Math.min(viewportBounds.height - position.top - relativeOffset, comboRect.top, maxHeight));
+        } else if (position.top > comboRect.bottom) {
+            popup.resetHeight(Math.min(viewportBounds.height - position.top - relativeOffset, viewportBounds.height - comboRect.bottom, maxHeight));
+        }
     }
 
     return position;