diff --git a/packages/components/select/src/useSelect.ts b/packages/components/select/src/useSelect.ts
index 9a3fd76cd8..0db82a159b 100644
--- a/packages/components/select/src/useSelect.ts
+++ b/packages/components/select/src/useSelect.ts
@@ -407,7 +407,11 @@ export const useSelect = (props, states: States, ctx) => {
         originClientHeight ||
         (input.clientHeight > 0 ? input.clientHeight + 2 : 0)
       const _tags = tags.value
-      const gotSize = getComponentSize(selectSize.value || form?.size)
+      const cssVarOfSelectSize = getComputedStyle(input).getPropertyValue(
+        ns.cssVarName('input-height')
+      )
+      const gotSize =
+        cssVarOfSelectSize || getComponentSize(selectSize.value || form?.size)
 
       const sizeInMap =
         selectSize.value ||