diff --git a/.changeset/flat-parrots-smoke.md b/.changeset/flat-parrots-smoke.md
new file mode 100644
index 000000000..834ebdf40
--- /dev/null
+++ b/.changeset/flat-parrots-smoke.md
@@ -0,0 +1,5 @@
+---
+"@hi-ui/form": patch
+---
+
+fix: 修复横向表单错误提示样式问题
diff --git a/.changeset/many-bees-deliver.md b/.changeset/many-bees-deliver.md
new file mode 100644
index 000000000..bb43dad5f
--- /dev/null
+++ b/.changeset/many-bees-deliver.md
@@ -0,0 +1,5 @@
+---
+"@hi-ui/hiui": patch
+---
+
+fix(form): 修复横向表单错误提示样式问题
diff --git a/packages/ui/form/src/FormLabel.tsx b/packages/ui/form/src/FormLabel.tsx
index 8d03a96ac..704741da4 100644
--- a/packages/ui/form/src/FormLabel.tsx
+++ b/packages/ui/form/src/FormLabel.tsx
@@ -46,7 +46,9 @@ export const FormLabel = forwardRef<HTMLDivElement | null, FormLabelProps>((prop
 
     return {
       labelWidth,
-      controlWidth: `calc(100% - ${labelWidth}px)`,
+      controlWidth: isNumeric(labelWidth)
+        ? `calc(100% - ${labelWidth}px)`
+        : `calc(100% - ${labelWidth})`,
     }
   }, [labelPlacement, labelWidthProp])