diff --git a/src/__tests__/FileMetadataInheritance.test.ts b/src/__tests__/FileMetadataInheritance.test.ts
index 5290029a..8643387d 100644
--- a/src/__tests__/FileMetadataInheritance.test.ts
+++ b/src/__tests__/FileMetadataInheritance.test.ts
@@ -124,6 +124,22 @@ describe("File Metadata Inheritance", () => {
 			// tags应该被继承，但不会覆盖非继承字段
 		});
 
+		test("should use filename when inherited frontmatter project is true", () => {
+			const content = "- [ ] Task without explicit project";
+			const fileMetadata = {
+				project: true,
+			};
+
+			const tasks = parser.parseLegacy(
+				content,
+				"Projects/My Awesome Project.md",
+				fileMetadata
+			);
+
+			expect(tasks).toHaveLength(1);
+			expect(tasks[0].metadata.project).toBe("My Awesome Project");
+		});
+
 		test("should work independently of project configuration", () => {
 			// 项目配置为null，验证不会崩溃
 			mockPlugin.settings.projectConfig = null;
@@ -515,4 +531,4 @@ describe("File Metadata Inheritance", () => {
 			});
 		});
 	});
-});
\ No newline at end of file
+});
diff --git a/src/__tests__/FileMetadataTaskParser.test.ts b/src/__tests__/FileMetadataTaskParser.test.ts
index 8129980f..17313b84 100644
--- a/src/__tests__/FileMetadataTaskParser.test.ts
+++ b/src/__tests__/FileMetadataTaskParser.test.ts
@@ -199,6 +199,29 @@ describe("FileMetadataTaskParser", () => {
 			expect(dueDateTask?.status).toBe(" "); // Due dates are typically incomplete
 		});
 
+		it("should use filename as project name when frontmatter project is true", () => {
+			const filePath = "Projects/My Awesome Project.md";
+			const fileContent = "# Test File";
+			const fileCache = {
+				frontmatter: {
+					title: "Test Task",
+					todo: true,
+					project: true,
+				},
+				tags: [],
+			};
+
+			const result = parser.parseFileForTasks(
+				filePath,
+				fileContent,
+				fileCache as any
+			);
+
+			expect(result.errors).toHaveLength(0);
+			expect(result.tasks).toHaveLength(1);
+			expect(result.tasks[0].metadata.project).toBe("My Awesome Project");
+		});
+
 		it("should not create tasks when parsing is disabled", () => {
 			const disabledConfig: FileParsingConfiguration = {
 				enableFileMetadataParsing: false,
diff --git a/src/__tests__/file-source/FileSource.basic.test.ts b/src/__tests__/file-source/FileSource.basic.test.ts
index 6ad36671..53587794 100644
--- a/src/__tests__/file-source/FileSource.basic.test.ts
+++ b/src/__tests__/file-source/FileSource.basic.test.ts
@@ -331,6 +331,21 @@ describe('FileSource', () => {
       expect(task!.metadata.project).toBe('Test Project');
     });
 
+    it('should use filename as project name when frontmatter project is true', async () => {
+      const fileCache = {
+        frontmatter: {
+          dueDate: '2024-01-01',
+          project: true
+        }
+      };
+      mockApp.metadataCache.getFileCache.mockReturnValue(fileCache);
+
+      const task = await fileSource.createFileTask('Projects/My Awesome Project.md');
+
+      expect(task).toBeTruthy();
+      expect(task!.metadata.project).toBe('My Awesome Project');
+    });
+
     it('should use default status when not specified', async () => {
       const fileCache = {
         frontmatter: {
@@ -436,4 +451,4 @@ describe('FileSource', () => {
       await expect(fileSource.refresh()).resolves.not.toThrow();
     });
   });
-});
\ No newline at end of file
+});
diff --git a/src/dataflow/core/ConfigurableTaskParser.ts b/src/dataflow/core/ConfigurableTaskParser.ts
index c897d871..64a71422 100644
--- a/src/dataflow/core/ConfigurableTaskParser.ts
+++ b/src/dataflow/core/ConfigurableTaskParser.ts
@@ -143,6 +143,7 @@ export class MarkdownTaskParser {
 				const inheritedMetadata = this.inheritFileMetadata(
 					metadata,
 					isSubtask,
+					filePath,
 				);
 
 				// Extract time components from task content using enhanced time parsing
@@ -1736,6 +1737,7 @@ export class MarkdownTaskParser {
 	private inheritFileMetadata(
 		taskMetadata: Record<string, string>,
 		isSubtask: boolean = false,
+		filePath: string = "",
 	): Record<string, string> {
 		// Helper function to convert priority values to numbers
 		const convertPriorityValue = (value: any): string => {
@@ -1861,22 +1863,34 @@ export class MarkdownTaskParser {
 				try {
 					const configuredProjectKey =
 						this.config.projectConfig?.metadataConfig?.metadataKey;
+					const configuredProjectValue =
+						configuredProjectKey !== undefined
+							? this.fileMetadata[configuredProjectKey]
+							: undefined;
 					if (
 						configuredProjectKey &&
-						this.fileMetadata[configuredProjectKey] !== undefined &&
-						this.fileMetadata[configuredProjectKey] !== null &&
-						String(
-							this.fileMetadata[configuredProjectKey],
-						).trim() !== ""
+						configuredProjectValue !== undefined &&
+						configuredProjectValue !== null
 					) {
 						if (
 							inherited.project === undefined ||
 							inherited.project === null ||
 							inherited.project === ""
 						) {
-							inherited.project = String(
-								this.fileMetadata[configuredProjectKey],
-							).trim();
+							if (configuredProjectValue === true) {
+								const fileName =
+									filePath.split("/").pop() || filePath;
+								inherited.project = fileName.replace(
+									/\.md$/i,
+									"",
+								);
+							} else if (
+								typeof configuredProjectValue === "string" &&
+								configuredProjectValue.trim() !== ""
+							) {
+								inherited.project =
+									configuredProjectValue.trim();
+							}
 						}
 					}
 				} catch {}
@@ -1939,6 +1953,10 @@ export class MarkdownTaskParser {
 						// Convert priority values to numbers before inheritance
 						if (key === "priority") {
 							inherited[key] = convertPriorityValue(value);
+						} else if (key === "project" && value === true) {
+							const fileName =
+								filePath.split("/").pop() || filePath;
+							inherited[key] = fileName.replace(/\.md$/i, "");
 						} else {
 							inherited[key] = String(value);
 						}
diff --git a/src/dataflow/sources/FileSource.ts b/src/dataflow/sources/FileSource.ts
index 118e6d19..2f5f41de 100644
--- a/src/dataflow/sources/FileSource.ts
+++ b/src/dataflow/sources/FileSource.ts
@@ -907,10 +907,13 @@ export class FileSource {
 		// 2. Metadata mapping (e.g., custom_project mapped to project via metadataMappings)
 		// 3. Tag extraction (#project/xxx) - lowest priority, only if frontmatter has nothing
 		const projectVal = resolvedFrontmatter.project ?? projectFromTags;
-		const projectValue: string | undefined =
-			projectVal !== undefined && projectVal !== null
-				? String(projectVal)
-				: undefined;
+		let projectValue: string | undefined;
+		if (projectVal === true) {
+			const fileName = filePath.split("/").pop() || filePath;
+			projectValue = fileName.replace(/\.md$/i, "");
+		} else if (typeof projectVal === "string" && projectVal.trim()) {
+			projectValue = projectVal.trim();
+		}
 
 		const shouldStripProjectTags =
 			!resolvedFrontmatter.project &&
diff --git a/src/parsers/file-metadata-parser.ts b/src/parsers/file-metadata-parser.ts
index 9c78a8ec..7ffe732e 100644
--- a/src/parsers/file-metadata-parser.ts
+++ b/src/parsers/file-metadata-parser.ts
@@ -336,9 +336,16 @@ export class FileMetadataTaskParser {
 		const detectedProject = this.detectProjectFromFile(filePath, frontmatter, fileCache);
 		if (detectedProject) {
 			metadata.project = detectedProject;
-		} else if (frontmatter.project) {
+		} else if (frontmatter.project === true) {
+			// Legacy boolean semantics: `project: true` means use filename
+			const fileName = filePath.split("/").pop() || filePath;
+			metadata.project = fileName.replace(/\.md$/i, "");
+		} else if (
+			typeof frontmatter.project === "string" &&
+			frontmatter.project.trim()
+		) {
 			// Fallback to legacy project field
-			metadata.project = String(frontmatter.project);
+			metadata.project = frontmatter.project.trim();
 		}
 		if (frontmatter.context) {
 			metadata.context = String(frontmatter.context);