diff --git a/app/database/chroma_db.py b/app/database/chroma_db.py
index 0abe634..677854a 100644
--- a/app/database/chroma_db.py
+++ b/app/database/chroma_db.py
@@ -10,7 +10,7 @@
 import os
 import datetime
 from dotenv import load_dotenv
-from app.dto.db_dto import AddScheduleDTO, DeleteScheduleDTO, RecommendationMainRequestDTO, ReportTagsRequestDTO
+from app.dto.db_dto import AddScheduleDTO, DeleteScheduleDTO, UpdateScheduleDTO, RecommendationMainRequestDTO, ReportTagsRequestDTO
 
 load_dotenv()
 CHROMA_DB_IP_ADDRESS = os.getenv("CHROMA_DB_IP_ADDRESS")
@@ -70,6 +70,31 @@ async def delete_db_data(schedule_data: DeleteScheduleDTO):
     )
     return True
 
+# 데이터베이스 업데이트 함수 정의
+async def update_db_data(schedule_data: UpdateScheduleDTO):
+    schedule_date = schedule_data.schedule_datetime_start.split("T")[0]
+    year = int(schedule_date.split("-")[0])
+    month = int(schedule_date.split("-")[1])
+    date = int(schedule_date.split("-")[2])
+
+    # 기존 스케줄 업데이트 로직
+    schedules.update(
+        documents=[schedule_data.data],
+        ids=[str(schedule_data.schedule_id)],
+        metadatas=[{
+            "year": year,
+            "month": month,
+            "date": date,
+            "datetime_start": schedule_data.schedule_datetime_start,
+            "datetime_end": schedule_data.schedule_datetime_end,
+            "member": schedule_data.member_id,
+            "category": schedule_data.category,
+            "location": schedule_data.location,
+            "person": schedule_data.person
+        }]
+    )
+    return True
+
 # 유저의 id, 해당 날짜로 필터링
 async def db_daily_schedule(user_data: RecommendationMainRequestDTO):
     member = user_data.member_id
diff --git a/app/dto/db_dto.py b/app/dto/db_dto.py
index 5d84981..cac7dc9 100644
--- a/app/dto/db_dto.py
+++ b/app/dto/db_dto.py
@@ -7,7 +7,7 @@ class AddScheduleDTO(BaseModel):
     schedule_datetime_end: str
     schedule_id: int
     member_id: int
-    category: int
+    category: str
     location: str
     person: str
 
@@ -15,6 +15,16 @@ class DeleteScheduleDTO(BaseModel):
     schedule_id: int
     member_id: int
 
+class UpdateScheduleDTO(BaseModel):
+    data: str
+    schedule_datetime_start: str
+    schedule_datetime_end: str
+    schedule_id: int
+    member_id: int
+    category: str
+    location: str
+    person: str
+
 class RecommendationMainRequestDTO(BaseModel):
     member_id: int
     user_persona: str
diff --git a/app/routers/chromadb.py b/app/routers/chromadb.py
index 4fd8775..6bca24f 100644
--- a/app/routers/chromadb.py
+++ b/app/routers/chromadb.py
@@ -4,8 +4,8 @@
 from dotenv import load_dotenv
 from fastapi import APIRouter, HTTPException, Depends, status
 
-from app.dto.db_dto import AddScheduleDTO, DeleteScheduleDTO
-from app.database.chroma_db import add_db_data, delete_db_data, get_chroma_client
+from app.dto.db_dto import AddScheduleDTO, DeleteScheduleDTO, UpdateScheduleDTO
+from app.database.chroma_db import add_db_data, delete_db_data, update_db_data, get_chroma_client
 
 router = APIRouter(
     prefix="/chromadb",
@@ -41,11 +41,11 @@ async def delete_schedule_endpoint(schedule_data: DeleteScheduleDTO, chroma_clie
         raise HTTPException(status_code=500, detail=str(e))
 
 
-@router.delete("/delete_schedule", status_code=status.HTTP_204_NO_CONTENT)
-async def delete_schedule_endpoint(schedule_data: DeleteScheduleDTO, chroma_client=Depends(get_chroma_client)):
+@router.put("/update_schedule", status_code=status.HTTP_200_OK)
+async def update_schedule_endpoint(schedule_data: UpdateScheduleDTO, chroma_client=Depends(get_chroma_client)):
     try:
-        # 직접 `add_db_data` 함수를 비동기적으로 호출합니다.
-        await delete_db_data(schedule_data)
-        return {"message": "Schedule delete successfully"}
+        # 데이터베이스 업데이트 함수 호출
+        await update_db_data(schedule_data)
+        return {"message": "Schedule updated successfully"}
     except Exception as e:
         raise HTTPException(status_code=500, detail=str(e))
\ No newline at end of file