diff --git a/uni_modules/uview-ui/components/u-textarea/u-textarea.vue b/uni_modules/uview-ui/components/u-textarea/u-textarea.vue
index 2cd5fdc3..6835c516 100644
--- a/uni_modules/uview-ui/components/u-textarea/u-textarea.vue
+++ b/uni_modules/uview-ui/components/u-textarea/u-textarea.vue
@@ -164,6 +164,9 @@ export default {
         },
         onInput(e) {
 			let { value = "" } = e.detail || {};
+			if (this.maxlength > 0 && value.length > this.maxlength) {
+				value = value.subtring(0, this.maxlength);
+			}
 			// 格式化过滤方法
 			const formatter = this.formatter || this.innerFormatter
 			const formatValue = formatter(value)