diff --git a/packages/components/input-number/__tests__/input-number.test.ts b/packages/components/input-number/__tests__/input-number.test.ts
index 5cc93f7cce..f0b03f9b86 100644
--- a/packages/components/input-number/__tests__/input-number.test.ts
+++ b/packages/components/input-number/__tests__/input-number.test.ts
@@ -158,6 +158,19 @@ describe('InputNumber.vue', () => {
     await wrapper.find('input').setValue(1.1111111111)
     expect(wrapper.find('input').element.value).toEqual('1.11')
   })
+  test('precision accuracy', async () => {
+    const wrapper = _mount({
+      template: '<el-input-number :precision="2" v-model="num" />',
+      setup() {
+        const num = ref(0)
+        return {
+          num,
+        }
+      },
+    })
+    await wrapper.find('input').setValue(17.275)
+    expect(wrapper.find('input').element.value).toEqual('17.28')
+  })
   test('disabled', async () => {
     const wrapper = _mount({
       template: '<el-input-number :disabled="true" v-model="num" />',
diff --git a/packages/components/input-number/src/input-number.vue b/packages/components/input-number/src/input-number.vue
index 40dce765d3..6eaa83afaa 100644
--- a/packages/components/input-number/src/input-number.vue
+++ b/packages/components/input-number/src/input-number.vue
@@ -153,6 +153,12 @@ export default defineComponent({
     })
     const toPrecision = (num: number, pre?: number) => {
       if (isUndefined(pre)) pre = numPrecision.value
+      const digits = num.toString().split('.')
+      if (digits.length > 1) {
+        const integer = digits[0]
+        const decimal = Math.round(+digits[1] / 10 ** (digits[1].length - pre))
+        return Number.parseFloat(`${integer}.${decimal}`)
+      }
       return Number.parseFloat(`${Math.round(num * 10 ** pre) / 10 ** pre}`)
     }
     const getPrecision = (value: number | undefined) => {