diff --git a/README.md b/README.md
index 43720cc..b47ce7f 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,9 @@ pnpm add @utopia-utils/dom
 * yuanToFen: 人民币：元转分。[source](https://github.com/GreatAuk/utopia-utils/blob/main/packages/core/src/yuanToFen.ts)
 * fenToYuan: 人民币：分转元。[source](https://github.com/GreatAuk/utopia-utils/blob/main/packages/core/src/fenToYuan.ts)
 * yuanFormat: 人民币格式化（单位默认是分，会进行分转元再格式化）。[source](https://github.com/GreatAuk/utopia-utils/blob/main/packages/core/src/yuanFormat.ts)
+* formatterBankCard: 银行卡号格式化。[source](https://github.com/GreatAuk/utopia-utils/blob/main/packages/core/src/stringFormatter.ts)
+* formatterPhoneNumber: 手机号格式化。[source](https://github.com/GreatAuk/utopia-utils/blob/main/packages/core/src/stringFormatter.ts)
+
 ### 类型判断
 
 ```bash
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 2ba2bf2..58fa71b 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -35,7 +35,7 @@ export * from './pipe'
 export * from './randomInt'
 export * from './randomString'
 export * from './retry'
-export * from './sleep'
+export * from './sleep'mch
 export * from './sort'
 export * from './stringFormatter'
 export * from './union'
diff --git a/packages/core/src/stringFormatter.test.ts b/packages/core/src/stringFormatter.test.ts
index fce22b6..1037947 100644
--- a/packages/core/src/stringFormatter.test.ts
+++ b/packages/core/src/stringFormatter.test.ts
@@ -1,6 +1,6 @@
 import { describe, expect, it } from 'vitest'
 
-import { formatterBankCard } from './stringFormatter'
+import { formatterBankCard, formatterPhoneNumber } from './stringFormatter'
 
 describe('stringFormatter', () => {
   it('formatterBankCard', () => {
@@ -13,4 +13,14 @@ describe('stringFormatter', () => {
     // @ts-expect-error test undefined
     expect(formatterBankCard(undefined)).toMatchInlineSnapshot(`""`)
   })
+
+  it('formatterPhoneNumber', () => {
+    expect(formatterPhoneNumber('12345678901')).toMatchInlineSnapshot(`"123 4567 8901"`)
+    expect(formatterPhoneNumber('123456789012345678901')).toMatchInlineSnapshot(`"123 4567 8901"`)
+    expect(formatterPhoneNumber('  SD 123 4567 8901 23fdss  ')).toMatchInlineSnapshot(`"123 4567 8901"`)
+    expect(formatterPhoneNumber('')).toMatchInlineSnapshot(`""`)
+    expect(formatterPhoneNumber('null')).toMatchInlineSnapshot(`""`)
+    // @ts-expect-error test undefined
+    expect(formatterPhoneNumber(undefined)).toMatchInlineSnapshot(`""`)
+  })
 })
diff --git a/packages/core/src/stringFormatter.ts b/packages/core/src/stringFormatter.ts
index 1236ce0..10dcd72 100644
--- a/packages/core/src/stringFormatter.ts
+++ b/packages/core/src/stringFormatter.ts
@@ -2,7 +2,39 @@
  * Formats a bank card number by removing non-digit characters and adding spaces every four digits.
  * @param str - The bank card number to be formatted.
  * @returns The formatted bank card number.
+ * @example
+ * ```ts
+ * formatterBankCard('1234567890123456') // '1234 5678 9012 3456'
+ * formatterBankCard('_  3232 32432 32432  ') // '3232 3243 2324 32'
+ * formatterBankCard(undefined) // ''
+ * ```
  */
 export function formatterBankCard(str: string) {
   return `${str}`.replace(/\D/g, '').replace(/(\d{4})(?=\d)/g, '$1 ')
 }
+
+const PHONE_LENGTH = 11
+/**
+ * Formats a phone number string.
+ *
+ * @param str - The phone number string to format.
+ * @returns The formatted phone number string.
+ * @example
+ * ```ts
+ * formatterPhoneNumber('12345678901') // '123 4567 8901'
+ * formatterPhoneNumber(' asd  123456789012345678901') // '123 4567 8901'
+ * formatterPhoneNumber(undefined) // ''
+ * ```
+ */
+export function formatterPhoneNumber(str: string) {
+  return `${str}`
+    .replace(/\D/g, '')
+    .substring(0, PHONE_LENGTH)
+    .replace(/(\d{3})(\d{0,4})?(\d{0,4})?/, (res, $1, $2, $3) => {
+      if (res.length <= 3)
+        return $1
+      if (res.length <= 7)
+        return `${$1} ${$2}`
+      return `${$1} ${$2} ${$3}`
+    })
+}