diff --git a/src/crud.py b/src/crud.py
new file mode 100644
index 0000000..d40b470
--- /dev/null
+++ b/src/crud.py
@@ -0,0 +1,38 @@
+from sqlalchemy.orm import Session
+from src.models import Task
+from src.schemas import TaskCreate, TaskUpdate
+
+def get_tasks(db: Session):
+    return db.query(Task).all()
+
+def get_tasks_by_status(db: Session, is_done: bool):
+    return db.query(Task).filter(Task.is_done == is_done).all()
+
+def get_task(db: Session, task_id: int):
+    return db.query(Task).filter(Task.id == task_id).first()
+
+def create_task(db: Session, task: TaskCreate):
+    db_task = Task(**task.dict())
+    db.add(db_task)
+    db.commit()
+    db.refresh(db_task)
+    return db_task
+
+
+def update_task(db: Session, task_id: int, task_update: TaskUpdate):
+    db_task = get_task(db, task_id)
+    if db_task:
+        if task_update.title is not None:
+            db_task.title = task_update.title
+        if task_update.is_done is not None:
+            db_task.is_done = task_update.is_done
+        db.commit()
+        db.refresh(db_task)
+    return db_task
+
+def delete_task(db: Session, task_id: int):
+    db_task = get_task(db, task_id)
+    if db_task:
+        db.delete(db_task)
+        db.commit()
+    return db_task
diff --git a/src/database.py b/src/database.py
new file mode 100644
index 0000000..d1f3876
--- /dev/null
+++ b/src/database.py
@@ -0,0 +1,14 @@
+from sqlalchemy import create_engine
+from sqlalchemy.orm import declarative_base, sessionmaker  # 변경된 경로로 import
+
+# 데이터베이스 URL
+DATABASE_URL = "sqlite:///./test.db"
+
+# 데이터베이스 엔진
+engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
+
+# 세션 로컬 생성
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+# Declarative Base 클래스 생성
+Base = declarative_base()
diff --git a/src/main.py b/src/main.py
new file mode 100644
index 0000000..cdb4bd7
--- /dev/null
+++ b/src/main.py
@@ -0,0 +1,16 @@
+from fastapi import FastAPI
+from src.routers import tasks
+from src.database import Base, engine
+
+# 데이터베이스 초기화
+Base.metadata.create_all(bind=engine)
+
+# FastAPI 앱 생성
+app = FastAPI(
+    title="Todo List API",
+    description="FastAPI를 사용한 Todo List API",
+    version="1.0.0"
+)
+
+# Task 라우터 추가
+app.include_router(tasks.router)
diff --git a/src/main/java/com/example/techeer_partners_api_session/TecheerPartnersApiSessionApplication.java b/src/main/java/com/example/techeer_partners_api_session/TecheerPartnersApiSessionApplication.java
deleted file mode 100644
index dd01199..0000000
--- a/src/main/java/com/example/techeer_partners_api_session/TecheerPartnersApiSessionApplication.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.example.techeer_partners_api_session;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class TecheerPartnersApiSessionApplication {
-
-	public static void main(String[] args) {
-		SpringApplication.run(TecheerPartnersApiSessionApplication.class, args);
-	}
-
-}
diff --git a/src/main/java/com/example/techeer_partners_api_session/config/WebConfig.java b/src/main/java/com/example/techeer_partners_api_session/config/WebConfig.java
deleted file mode 100644
index bc617fa..0000000
--- a/src/main/java/com/example/techeer_partners_api_session/config/WebConfig.java
+++ /dev/null
@@ -1,18 +0,0 @@
-package com.example.techeer_partners_api_session.config;
-
-import org.springframework.context.annotation.Configuration;
-import org.springframework.web.servlet.config.annotation.CorsRegistry;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
-
-@Configuration
-public class WebConfig implements WebMvcConfigurer {
-
-    @Override
-    public void addCorsMappings(CorsRegistry registry) {
-        registry.addMapping("/**") // 모든 경로에 대해
-                .allowedOrigins("http://localhost:3000") // 프론트엔드 주소 (React 예시)
-                .allowedMethods("GET", "POST", "PUT", "DELETE") // 허용할 HTTP 메서드
-                .allowedHeaders("*") // 모든 헤더 허용
-                .allowCredentials(true); // 쿠키 등 인증 정보 허용
-    }
-}
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
deleted file mode 100644
index c7ffb1a..0000000
--- a/src/main/resources/application.properties
+++ /dev/null
@@ -1,10 +0,0 @@
-spring.application.name=techeer-partners-api-session
-
-# H2
-spring.datasource.url=jdbc:h2:mem:todolistdb
-spring.datasource.driverClassName=org.h2.Driver
-spring.datasource.username=user
-spring.datasource.password=password
-spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
-spring.h2.console.enabled=true
-spring.h2.console.path=/h2-console
diff --git a/src/models.py b/src/models.py
new file mode 100644
index 0000000..ea4ca16
--- /dev/null
+++ b/src/models.py
@@ -0,0 +1,9 @@
+from sqlalchemy import Column, Integer, String, Boolean
+from src.database import Base
+
+class Task(Base):
+    __tablename__ = 'tasks'
+
+    id = Column(Integer, primary_key=True, index=True)
+    title = Column(String, index=True)
+    is_done = Column(Boolean, default=False)
diff --git a/src/requirements.txt b/src/requirements.txt
new file mode 100644
index 0000000..0a4249c
--- /dev/null
+++ b/src/requirements.txt
@@ -0,0 +1,4 @@
+fastapi
+uvicorn
+sqlalchemy
+pydantic
diff --git a/src/routers/__init__.py b/src/routers/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/routers/tasks.py b/src/routers/tasks.py
new file mode 100644
index 0000000..640d95b
--- /dev/null
+++ b/src/routers/tasks.py
@@ -0,0 +1,58 @@
+from fastapi import APIRouter, Depends, HTTPException
+from sqlalchemy.orm import Session
+from src.database import SessionLocal
+from src.schemas import TaskCreate, TaskUpdate, TaskResponse
+from src import crud
+
+
+router = APIRouter(
+    prefix="/tasks",
+    tags=["Tasks"]
+)
+
+# DB 세션 의존성
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+# 할 일 생성
+# 할 일 생성
+@router.post("", response_model=TaskResponse, status_code=201)
+def create_task(task: TaskCreate, db: Session = Depends(get_db)):
+    new_task = crud.create_task(db, task)
+    return new_task
+
+
+# 전체 할 일 조회
+@router.get("", response_model=list[TaskResponse])
+def read_tasks(db: Session = Depends(get_db)):
+    return crud.get_tasks(db)
+
+# 완료된 일 조회
+@router.get("/completed", response_model=list[TaskResponse])
+def read_completed_tasks(db: Session = Depends(get_db)):
+    return crud.get_tasks_by_status(db, is_done=True)
+
+# 미완료된 일 조회
+@router.get("/incomplete", response_model=list[TaskResponse])
+def read_incomplete_tasks(db: Session = Depends(get_db)):
+    return crud.get_tasks_by_status(db, is_done=False)
+
+# 할 일 수정
+@router.patch("/{id}", response_model=TaskResponse)
+def update_task(id: int, task_update: TaskUpdate, db: Session = Depends(get_db)):
+    task = crud.update_task(db, id, task_update)
+    if not task:
+        raise HTTPException(status_code=404, detail="Task not found")
+    return {"status": "success", "message": "할 일이 수정되었습니다."}
+
+# 할 일 삭제
+@router.delete("/{id}")
+def delete_task(id: int, db: Session = Depends(get_db)):
+    task = crud.delete_task(db, id)
+    if not task:
+        raise HTTPException(status_code=404, detail="Task not found")
+    return {"status": "success", "message": "할 일이 삭제되었습니다."}
diff --git a/src/schemas.py b/src/schemas.py
new file mode 100644
index 0000000..7fb99be
--- /dev/null
+++ b/src/schemas.py
@@ -0,0 +1,17 @@
+from pydantic import BaseModel
+
+class TaskCreate(BaseModel):
+    title: str
+    is_done: bool = False
+
+class TaskUpdate(BaseModel):
+    title: str = None
+    is_done: bool = None
+
+class TaskResponse(BaseModel):
+    id: int
+    title: str
+    is_done: bool
+
+    class Config:
+        from_attributes = True
diff --git a/src/test.db b/src/test.db
new file mode 100644
index 0000000..5c9d77f
Binary files /dev/null and b/src/test.db differ
diff --git a/src/test/java/com/example/techeer_partners_api_session/TecheerPartnersApiSessionApplicationTests.java b/src/test/java/com/example/techeer_partners_api_session/TecheerPartnersApiSessionApplicationTests.java
deleted file mode 100644
index 4d67ec1..0000000
--- a/src/test/java/com/example/techeer_partners_api_session/TecheerPartnersApiSessionApplicationTests.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.example.techeer_partners_api_session;
-
-import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
-
-@SpringBootTest
-class TecheerPartnersApiSessionApplicationTests {
-
-	@Test
-	void contextLoads() {
-	}
-
-}
diff --git a/src/tests/test_tasks.py b/src/tests/test_tasks.py
new file mode 100644
index 0000000..e69de29
diff --git a/test.db b/test.db
new file mode 100644
index 0000000..c354cb8
Binary files /dev/null and b/test.db differ