diff --git a/lib/pos_update_upsolution.py b/lib/pos_update_upsolution.py
new file mode 100644
index 0000000..d33883c
--- /dev/null
+++ b/lib/pos_update_upsolution.py
@@ -0,0 +1,128 @@
+import os
+import sys
+import pandas as pd
+import shutil
+from datetime import datetime
+from sqlalchemy import Table, MetaData
+from sqlalchemy.dialects.mysql import insert as mysql_insert
+from sqlalchemy.exc import SQLAlchemyError
+
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+
+from lib.common import get_logger
+from conf import db, db_schema  # get_engine, get_session 포함
+
+logger = get_logger("POS_UPS")
+
+DATA_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__), "../data"))
+FINISH_DIR = os.path.join(DATA_DIR, "finish")
+os.makedirs(FINISH_DIR, exist_ok=True)
+
+
+def nan_to_none(value):
+    import pandas as pd
+    if pd.isna(value):
+        return None
+    return value
+
+
+def load_excel_data(filepath: str):
+    df = pd.read_excel(filepath, header=1)  # 2행이 header, 3행부터 데이터
+    # 컬럼명 공백 제거 등 정리
+    df.columns = [col.strip() for col in df.columns]
+    # 필수 컬럼 체크
+    required_cols = ['영수증 번호', '품목명']
+    for col in required_cols:
+        if col not in df.columns:
+            raise ValueError(f"필수 컬럼 누락: {col}")
+    df = df.dropna(subset=required_cols)
+    return df
+
+
+def process_file(filepath: str, engine, session, table):
+    try:
+        # sale_date는 엑셀 내부 각 행별로 존재하므로, 파일명 기준 추출는 제외
+        df = load_excel_data(filepath)
+        logger.info(f"[LOAD] {os.path.basename(filepath)} - {len(df)}건")
+
+        inserted, updated, errors = 0, 0, 0
+
+        for _, row in df.iterrows():
+            try:
+                data = {
+                    "sale_date": pd.to_datetime(row["매출일시"]),
+                    "shop_name": str(row.get("매장명", "")).strip(),
+                    "pos_no": int(row.get("포스번호", 0)),
+                    "bill_no": int(row.get("영수증 번호", 0)),
+                    "product_cd": str(row.get("품목", "")).strip(),
+                    "ca01": nan_to_none(row.get("대분류")),
+                    "ca02": nan_to_none(row.get("중분류")),
+                    "ca03": nan_to_none(row.get("소분류")),
+                    "product_name": str(row.get("품목명", "")).strip(),
+                    "barcode": nan_to_none(row.get("바코드")),
+                    "amt": int(row.get("단가", 0)),
+                    "qty": int(row.get("수량", 0)),
+                    "tot_sale_amt": int(row.get("주문 금액", 0)),
+                    "dc_amt": int(row.get("할인 금액", 0)),
+                    "dcm_sale_amt": int(row.get("공급가액", 0)),
+                    "net_amt": int(row.get("세금", 0)),
+                    "vat_amt": int(row.get("부가세", 0)),
+                    "cash_receipt": int(row.get("현금영수증", 0)),
+                    "card": int(row.get("카드", 0)),
+                }
+
+                stmt = mysql_insert(table).values(**data)
+                update_stmt = stmt.on_duplicate_key_update({
+                    col.name: stmt.inserted[col.name]
+                    for col in table.columns
+                    if col.name not in ['sale_date', 'shop_name', 'pos_no', 'bill_no', 'product_cd']
+                })
+                result = session.execute(update_stmt)
+
+                # rowcount 1이면 insert, 2면 update (MySQL 특성상)
+                if result.rowcount == 1:
+                    inserted += 1
+                elif result.rowcount == 2:
+                    updated += 1
+
+            except Exception as e:
+                logger.warning(f"[ERROR:ROW] {e}")
+                errors += 1
+
+        session.commit()
+        logger.info(f"[DONE] 삽입: {inserted}, 업데이트: {updated}, 오류: {errors}")
+
+        shutil.move(filepath, os.path.join(FINISH_DIR, os.path.basename(filepath)))
+        logger.info(f"[MOVE] 완료: {os.path.join(FINISH_DIR, os.path.basename(filepath))}")
+
+    except SQLAlchemyError as e:
+        logger.error(f"[FAIL] DB 처리 중 오류 발생 - 롤백: {e}")
+        session.rollback()
+    except Exception as e:
+        logger.error(f"[FAIL] 파일 처리 중 오류 발생 - {e}")
+        session.rollback()
+
+
+def main():
+    engine = db.get_engine()
+    session = db.get_session()
+
+    metadata = MetaData()
+    table = Table(
+        db_schema.get_full_table_name("pos_ups_billdata"),
+        metadata,
+        autoload_with=engine
+    )
+
+    files = [os.path.join(DATA_DIR, f) for f in os.listdir(DATA_DIR)
+             if f.endswith(".xlsx") and f.startswith("영수증별 상세매출")]
+
+    logger.info(f"[INFO] 처리할 파일 {len(files)}개")
+
+    for file in sorted(files):
+        logger.info(f"[START] {os.path.basename(file)}")
+        process_file(file, engine, session, table)
+
+
+if __name__ == "__main__":
+    main()