diff --git a/src/packages/__VUE/input/index.taro.vue b/src/packages/__VUE/input/index.taro.vue
index de86382a10..0b16c716ca 100644
--- a/src/packages/__VUE/input/index.taro.vue
+++ b/src/packages/__VUE/input/index.taro.vue
@@ -225,27 +225,24 @@ export default create({
     const _onInput = (event: Event) => {
       const input = event.target as HTMLInputElement;
       let value = input.value;
-      if (props.maxLength && value.length > Number(props.maxLength)) {
-        value = value.slice(0, Number(props.maxLength));
-      }
       updateValue(value);
     };
 
     const updateValue = (value: string, trigger: InputFormatTrigger = 'onChange') => {
+      // #2178 & Taro #2642
+      emit('update:modelValue', value);
+      if (props.maxLength && value.length > Number(props.maxLength)) {
+        value = value.slice(0, Number(props.maxLength));
+      }
       if (props.type === 'digit') {
         value = formatNumber(value, false, false);
       }
       if (props.type === 'number') {
         value = formatNumber(value, true, true);
       }
-
       if (props.formatter && trigger === props.formatTrigger) {
         value = props.formatter(value);
       }
-
-      if (inputRef?.value.value !== value) {
-        inputRef.value.value = value;
-      }
       if (value !== props.modelValue) {
         emit('update:modelValue', value);
         // emit('change', value);