diff --git a/src/FrontMatterConverter.ts b/src/FrontMatterConverter.ts
index 39970ae..5699142 100644
--- a/src/FrontMatterConverter.ts
+++ b/src/FrontMatterConverter.ts
@@ -64,17 +64,20 @@ export class FrontMatterConverter implements Converter {
   private readonly resourcePath: string;
   private readonly isEnableBanner: boolean;
   private readonly isEnableUpdateFrontmatterTimeOnEdit: boolean;
+  private readonly defaultAuthor: string;
 
   constructor(
     fileName: string,
     resourcePath: string,
     isEnableBanner = false,
     isEnableUpdateFrontmatterTimeOnEdit = false,
+    defaultAuthor = '',
   ) {
     this.fileName = fileName;
     this.resourcePath = resourcePath;
     this.isEnableBanner = isEnableBanner;
     this.isEnableUpdateFrontmatterTimeOnEdit = isEnableUpdateFrontmatterTimeOnEdit;
+    this.defaultAuthor = defaultAuthor;
   }
 
   parseFrontMatter(content: string): [FrontMatter, string] {
@@ -92,6 +95,10 @@ export class FrontMatterConverter implements Converter {
       frontMatter.mermaid = true.toString();
     }
 
+    if (!frontMatter.authors && this.defaultAuthor) {
+      frontMatter.authors = this.defaultAuthor;
+    }
+
     const result = convert(
       convertImageFrontMatter(
         this.isEnableBanner,
@@ -147,7 +154,7 @@ function replaceDateFrontMatter(frontMatter: FrontMatter, isEnable: boolean): Fr
   return frontMatter;
 }
 
-export const convertFrontMatter = (input: string) => {
+export const convertFrontMatter = (input: string, defaultAuthor: string = '') => {
   const [frontMatter, body] = parseFrontMatter(input);
   if (Object.keys(frontMatter).length === 0) {
     return input;
@@ -161,6 +168,10 @@ export const convertFrontMatter = (input: string) => {
   delete frontMatter['aliases'];
   delete frontMatter['published'];
 
+  if (!frontMatter.authors && defaultAuthor && defaultAuthor.trim() !== '') {
+    frontMatter.authors = defaultAuthor;
+  }
+
   return join(
     convert({ ...frontMatter }),
     body,
diff --git a/src/docusaurus/docusaurus.ts b/src/docusaurus/docusaurus.ts
index e545188..cc1d77c 100644
--- a/src/docusaurus/docusaurus.ts
+++ b/src/docusaurus/docusaurus.ts
@@ -53,6 +53,7 @@ export const convertToDocusaurus = async (plugin: O2Plugin) => {
             convertWikiLink(
               convertFrontMatter(
                 contents,
+                plugin.docusaurus.defaultAuthor,
               ),
             ),
           ),
diff --git a/src/docusaurus/settings/DocusaurusSettings.ts b/src/docusaurus/settings/DocusaurusSettings.ts
index 7289cb7..6828d36 100644
--- a/src/docusaurus/settings/DocusaurusSettings.ts
+++ b/src/docusaurus/settings/DocusaurusSettings.ts
@@ -4,6 +4,7 @@ import { DateExtractionPattern } from '../DateExtractionPattern';
 export default class DocusaurusSettings implements O2PluginSettings {
   docusaurusPath: string;
   dateExtractionPattern: string;
+  defaultAuthor: string;
 
   targetPath(): string {
     return `${this.docusaurusPath}/blog`;
diff --git a/src/settings.ts b/src/settings.ts
index 8389b03..c0d83ce 100644
--- a/src/settings.ts
+++ b/src/settings.ts
@@ -64,6 +64,7 @@ export class O2SettingTab extends PluginSettingTab {
     });
     this.addDocusaurusPathSetting();
     this.dateExtractionPatternSetting();
+    this.addDefaultAuthorSetting(); // 새로운 설정 추가
   }
 
   private enableUpdateFrontmatterTimeOnEditSetting() {
@@ -202,6 +203,20 @@ export class O2SettingTab extends PluginSettingTab {
       });
   }
 
+  private addDefaultAuthorSetting() {
+    const docusaurus = this.plugin.docusaurus as DocusaurusSettings;
+    new Setting(this.containerEl)
+      .setName('Default Author')
+      .setDesc('The default author to be used in Docusaurus frontmatter.')
+      .addText(text => text
+        .setPlaceholder('Enter default author')
+        .setValue(docusaurus.defaultAuthor || '')
+        .onChange(async (value) => {
+          docusaurus.defaultAuthor = value;
+          await this.plugin.saveSettings();
+        }));
+  }
+
   private enableAutoArchiveSetting() {
     new Setting(this.containerEl)
       .setName('Auto archive')
diff --git a/src/tests/FrontMatterConverter.test.ts b/src/tests/FrontMatterConverter.test.ts
index d9e4cd2..a80290e 100644
--- a/src/tests/FrontMatterConverter.test.ts
+++ b/src/tests/FrontMatterConverter.test.ts
@@ -393,3 +393,49 @@ date: 2021-01-01 12:00:00 +0900
     expect(result).toEqual(incompleteFrontMatterContents); // Assuming the function passes through incomplete front matter as is
   });
 });
+
+describe('FrontMatterConverter with defaultAuthor', () => {
+  it('should not add authors when defaultAuthor is empty', () => {
+    const converter = new FrontMatterConverter('file.md', 'path', false, false, '');
+    const input = '---\ntitle: "Test"\n---\nContent';
+    const result = converter.convert(input);
+    expect(result).not.toContain('authors:');
+  });
+
+  it('should not override existing authors', () => {
+    const converter = new FrontMatterConverter('file.md', 'path', false, false, 'Default Author');
+    const input = '---\ntitle: "Test"\nauthors: Existing Author\n---\nContent';
+    const result = converter.convert(input);
+    expect(result).toContain('authors: Existing Author');
+    expect(result).not.toContain('authors: Default Author');
+  });
+
+  it('should add defaultAuthor when no authors exist', () => {
+    const converter = new FrontMatterConverter('file.md', 'path', false, false, 'Default Author');
+    const input = '---\ntitle: "Test"\n---\nContent';
+    const result = converter.convert(input);
+    expect(result).toContain('authors: Default Author');
+  });
+
+  it('should handle empty frontmatter', () => {
+    const converter = new FrontMatterConverter('file.md', 'path', false, false, 'Default Author');
+    const input = 'Content without frontmatter';
+    const result = converter.convert(input);
+    expect(result).toBe(input);
+  });
+});
+
+describe('convertFrontMatter with defaultAuthor', () => {
+  it('should add defaultAuthor when no authors exist', () => {
+    const input = '---\ntitle: "Test"\n---\nContent';
+    const result = convertFrontMatter(input, 'Default Author');
+    expect(result).toContain('authors: Default Author');
+  });
+
+  it('should not override existing authors', () => {
+    const input = '---\ntitle: "Test"\nauthors: Existing Author\n---\nContent';
+    const result = convertFrontMatter(input, 'Default Author');
+    expect(result).toContain('authors: Existing Author');
+    expect(result).not.toContain('authors: Default Author');
+  });
+});