diff --git a/packages/components/space/src/use-space.ts b/packages/components/space/src/use-space.ts
index 95573d6a3d2ae3..515ef28c7f8cad 100644
--- a/packages/components/space/src/use-space.ts
+++ b/packages/components/space/src/use-space.ts
@@ -56,7 +56,7 @@ export function useSpace(props: SpaceProps) {
       if (isNumber(size)) {
         val = size
       } else {
-        val = SIZE_MAP[size || 'small']
+        val = SIZE_MAP[size || 'small'] || SIZE_MAP['small']
       }
 
       if ((wrap || fill) && dir === 'horizontal') {