diff --git a/docs/.vitepress/en.mts b/docs/.vitepress/en.mts
index 76dd441e..17f379d6 100644
--- a/docs/.vitepress/en.mts
+++ b/docs/.vitepress/en.mts
@@ -197,6 +197,7 @@ function sidebar(): DefaultTheme.Sidebar {
             { text: 'kebabCase', link: '/reference/string/kebabCase' },
             { text: 'lowerCase', link: '/reference/string/lowerCase' },
             { text: 'startCase', link: '/reference/string/startCase' },
+            { text: 'pascalCase', link: '/reference/string/pascalCase' },
             { text: 'capitalize', link: '/reference/string/capitalize' },
             { text: 'startsWith (compat)', link: '/reference/compat/string/startsWith' },
             { text: 'endsWith (compat)', link: '/reference/compat/string/endsWith' },
diff --git a/docs/.vitepress/ko.mts b/docs/.vitepress/ko.mts
index 65332459..9fbfd7b5 100644
--- a/docs/.vitepress/ko.mts
+++ b/docs/.vitepress/ko.mts
@@ -210,6 +210,7 @@ function sidebar(): DefaultTheme.Sidebar {
             { text: 'kebabCase', link: '/ko/reference/string/kebabCase' },
             { text: 'lowerCase', link: '/ko/reference/string/lowerCase' },
             { text: 'startCase', link: '/ko/reference/string/startCase' },
+            { text: 'pascalCase', link: '/ko/reference/string/pascalCase' },
             { text: 'capitalize', link: '/ko/reference/string/capitalize' },
             { text: 'startsWith (호환성)', link: '/ko/reference/compat/string/startsWith' },
             { text: 'endsWith (호환성)', link: '/ko/reference/compat/string/endsWith' },
diff --git a/docs/.vitepress/zh_hans.mts b/docs/.vitepress/zh_hans.mts
index 440ceb8e..e7942052 100644
--- a/docs/.vitepress/zh_hans.mts
+++ b/docs/.vitepress/zh_hans.mts
@@ -191,6 +191,8 @@ function sidebar(): DefaultTheme.Sidebar {
             { text: 'snakeCase', link: '/zh_hans/reference/string/snakeCase' },
             { text: 'kebabCase', link: '/zh_hans/reference/string/kebabCase' },
             { text: 'lowerCase', link: '/zh_hans/reference/string/lowerCase' },
+            { text: 'startCase', link: '/zh_hans/reference/string/startCase' },
+            { text: 'pascalCase', link: '/zh_hans/reference/string/pascalCase' },
             { text: 'capitalize', link: '/zh_hans/reference/string/capitalize' },
             { text: 'startsWith (兼容性)', link: '/zh_hans/reference/compat/string/startsWith' },
             { text: 'endsWith (兼容性)', link: '/zh_hans/reference/compat/string/endsWith' },
diff --git a/docs/ko/reference/string/pascalCase.md b/docs/ko/reference/string/pascalCase.md
new file mode 100644
index 00000000..0b81f83e
--- /dev/null
+++ b/docs/ko/reference/string/pascalCase.md
@@ -0,0 +1,42 @@
+# pascalCase
+
+문자열을 파스칼 표기법으로 변환해요.
+
+파스칼 표기법은 여러 단어로 구성된 식별자의 각 단어의 첫 문자를 [대문자](./capitalize.md)로 연결하는 표기법이에요. 예를 들어 `PascalCase`처럼 써요.
+
+## 인터페이스
+
+```typescript
+function pascalCase(str: string): string;
+```
+
+### 파라미터
+
+- `str` (`string`): 파스칼 표기법으로 변환할 문자열.
+
+### 반환 값
+
+(`string`): 파스칼 표기법으로 변환된 문자열.
+
+## 예시
+
+```typescript
+import { pascalCase } from 'es-toolkit/string';
+
+const convertedStr1 = pascalCase('pascalCase'); // returns 'PascalCase'
+const convertedStr2 = pascalCase('some whitespace'); // returns 'SomeWhitespace'
+const convertedStr3 = pascalCase('hyphen-text'); // returns 'HyphenText'
+const convertedStr4 = pascalCase('HTTPRequest'); // returns 'HttpRequest'
+```
+
+## 데모
+
+::: sandpack
+
+```ts index.ts
+import { pascalCase } from 'es-toolkit/string';
+
+console.log(pascalCase('pascalCase'));
+```
+
+:::
diff --git a/docs/ko/reference/string/startCase.md b/docs/ko/reference/string/startCase.md
index fe0c5397..1c7298ca 100644
--- a/docs/ko/reference/string/startCase.md
+++ b/docs/ko/reference/string/startCase.md
@@ -32,3 +32,15 @@ startCase('__abc__123__def__'); // returns 'Abc 123 Def'
 startCase('_-_-_-_'); // returns ''
 startCase('12abc 12ABC'); // returns '12 Abc 12 ABC'
 ```
+
+## 데모
+
+::: sandpack
+
+```ts index.ts
+import { startCase } from 'es-toolkit/string';
+
+console.log(startCase('startCase'));
+```
+
+:::
diff --git a/docs/reference/string/pascalCase.md b/docs/reference/string/pascalCase.md
new file mode 100644
index 00000000..d0bf51e6
--- /dev/null
+++ b/docs/reference/string/pascalCase.md
@@ -0,0 +1,42 @@
+# pascalCase
+
+Converts a string to Pascal case.
+
+Pascal case is the naming convention in which each word is capitalized and concatenated without any separator characters. For example, `PascalCase`.
+
+## Signature
+
+```typescript
+function pascalCase(str: string): string;
+```
+
+### Parameters
+
+- `str` (`string`): The string that is to be changed to Pascal case.
+
+### Returns
+
+(`string`) The converted string to Pascal case.
+
+## Examples
+
+```typescript
+import { pascalCase } from 'es-toolkit/string';
+
+const convertedStr1 = pascalCase('pascalCase'); // returns 'PascalCase'
+const convertedStr2 = pascalCase('some whitespace'); // returns 'SomeWhitespace'
+const convertedStr3 = pascalCase('hyphen-text'); // returns 'HyphenText'
+const convertedStr4 = pascalCase('HTTPRequest'); // returns 'HttpRequest'
+```
+
+## Demo
+
+::: sandpack
+
+```ts index.ts
+import { pascalCase } from 'es-toolkit/string';
+
+console.log(pascalCase('pascalCase'));
+```
+
+:::
diff --git a/docs/reference/string/startCase.md b/docs/reference/string/startCase.md
index 5d36437c..53cb6893 100644
--- a/docs/reference/string/startCase.md
+++ b/docs/reference/string/startCase.md
@@ -32,3 +32,15 @@ startCase('__abc__123__def__'); // returns 'Abc 123 Def'
 startCase('_-_-_-_'); // returns ''
 startCase('12abc 12ABC'); // returns '12 Abc 12 ABC'
 ```
+
+## Demo
+
+::: sandpack
+
+```ts index.ts
+import { startCase } from 'es-toolkit/string';
+
+console.log(startCase('startCase'));
+```
+
+:::
diff --git a/docs/zh_hans/reference/string/pascalCase.md b/docs/zh_hans/reference/string/pascalCase.md
new file mode 100644
index 00000000..65152b14
--- /dev/null
+++ b/docs/zh_hans/reference/string/pascalCase.md
@@ -0,0 +1,42 @@
+# pascalCase
+
+将字符串转换为 Pascal 大小写。
+
+Pascal 大小写是一种命名约定，其中每个单词都被大写并且没有任何分隔符字符。例如，`PascalCase`。
+
+## 签名
+
+```typescript
+function pascalCase(str: string): string;
+```
+
+### 参数
+
+- `str` (`string`): 需要转换为 Pascal 大小写的字符串。
+
+### 返回值
+
+(`string`): 转换为 Pascal 大小写的字符串。
+
+## 示例
+
+```typescript
+import { pascalCase } from 'es-toolkit/string';
+
+const convertedStr1 = pascalCase('pascalCase'); // returns 'PascalCase'
+const convertedStr2 = pascalCase('some whitespace'); // returns 'SomeWhitespace'
+const convertedStr3 = pascalCase('hyphen-text'); // returns 'HyphenText'
+const convertedStr4 = pascalCase('HTTPRequest'); // returns 'HttpRequest'
+```
+
+## 演示
+
+::: sandpack
+
+```ts index.ts
+import { pascalCase } from 'es-toolkit/string';
+
+console.log(pascalCase('pascalCase'));
+```
+
+:::
diff --git a/docs/zh_hans/reference/string/startCase.md b/docs/zh_hans/reference/string/startCase.md
new file mode 100644
index 00000000..cba34c12
--- /dev/null
+++ b/docs/zh_hans/reference/string/startCase.md
@@ -0,0 +1,46 @@
+# startCase
+
+将字符串转换为 Start 大小写。
+
+Start 大小写是一种命名约定，其中标识符中每个单词的首字母大写，其余字母小写，单词之间用空格分隔，例如 `Start Case`。
+
+## 签名
+
+```typescript
+function startCase(str: string): string;
+```
+
+### 参数
+
+- `str` (`string`): 需要转换为 Start 大小写的字符串。
+
+### 返回值
+
+(`string`) The string converted to start case.
+
+## 示例
+
+```typescript
+import { startCase } from 'es-toolkit/string';
+
+startCase('--foo-bar--'); // returns 'Foo Bar'
+startCase('fooBar'); // returns 'Foo Bar'
+startCase('__FOO_BAR__'); // returns 'FOO BAR'
+startCase('XMLHttpRequest'); // returns 'XML Http Request'
+startCase('_abc_123_def'); // returns 'Abc 123 Def'
+startCase('__abc__123__def__'); // returns 'Abc 123 Def'
+startCase('_-_-_-_'); // returns ''
+startCase('12abc 12ABC'); // returns '12 Abc 12 ABC'
+```
+
+## 演示
+
+::: sandpack
+
+```ts index.ts
+import { startCase } from 'es-toolkit/string';
+
+console.log(startCase('startCase'));
+```
+
+:::