diff --git a/lib/common.py b/lib/common.py
index 2ef9416..41b8417 100644
--- a/lib/common.py
+++ b/lib/common.py
@@ -1,6 +1,8 @@
 # common.py
 import os, yaml
 import logging
+import time
+import glob
 
 def load_config():
     """
@@ -19,3 +21,11 @@ def get_logger(name):
         logger.addHandler(handler)
         logger.setLevel(logging.INFO)
     return logger
+
+def wait_download_complete(download_dir, ext, timeout=60):
+    for _ in range(timeout):
+        files = glob.glob(os.path.join(download_dir, f"*.{ext.strip('.')}"))
+        if files:
+            return files[0]
+        time.sleep(1)
+    raise TimeoutError("다운로드 대기 시간 초과")
\ No newline at end of file
diff --git a/lib/cookie_util.py b/lib/cookie_util.py
new file mode 100644
index 0000000..e77cc17
--- /dev/null
+++ b/lib/cookie_util.py
@@ -0,0 +1,21 @@
+import json
+import os
+
+COOKIE_PATH = os.path.join(os.path.dirname(__file__), '..', 'conf', 'cookies.json')
+
+def save_cookies(driver):
+    cookies = driver.get_cookies()
+    with open(COOKIE_PATH, 'w', encoding='utf-8') as f:
+        json.dump(cookies, f, indent=2)
+
+def load_cookies(driver, url='https://asp.upsolution.co.kr/'):
+    if not os.path.exists(COOKIE_PATH):
+        raise FileNotFoundError("쿠키 파일이 존재하지 않습니다. 먼저 수동 로그인 후 쿠키를 저장해주세요.")
+    
+    driver.get(url)
+    with open(COOKIE_PATH, 'r', encoding='utf-8') as f:
+        cookies = json.load(f)
+    for cookie in cookies:
+        # domain 필드는 문제가 될 수 있으므로 제거
+        cookie.pop('domain', None)
+        driver.add_cookie(cookie)
diff --git a/lib/save_cookie_once.py b/lib/save_cookie_once.py
new file mode 100644
index 0000000..ad49d77
--- /dev/null
+++ b/lib/save_cookie_once.py
@@ -0,0 +1,21 @@
+# 실행: python lib/save_cookie_once.py
+
+import os, sys
+from selenium import webdriver
+from selenium.webdriver.chrome.options import Options
+import time
+
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+
+from lib.cookie_util import save_cookies
+
+options = Options()
+driver = webdriver.Chrome(options=options)
+
+driver.get('https://asp.upsolution.co.kr/')
+print("브라우저가 열렸습니다. 로그인 완료 후 Enter를 누르세요...")
+input()
+save_cookies(driver)
+print("✅ 쿠키 저장 완료: conf/cookies.json")
+
+driver.quit()
diff --git a/lib/upsolution_crwaler.py b/lib/upsolution_crwaler.py
new file mode 100644
index 0000000..6f3e55f
--- /dev/null
+++ b/lib/upsolution_crwaler.py
@@ -0,0 +1,136 @@
+import os, sys
+import time
+import shutil
+from datetime import datetime, timedelta
+from selenium import webdriver
+from selenium.webdriver.common.by import By
+from selenium.webdriver.chrome.options import Options
+from selenium.webdriver.support.ui import WebDriverWait
+from selenium.webdriver.support import expected_conditions as EC
+
+sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+
+# 경로 설정
+BASE_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
+DOWNLOAD_DIR = os.path.join(BASE_DIR, 'data')
+
+from lib.common import load_config, get_logger, wait_download_complete
+
+
+# 💡 여기서 날짜 수동 설정
+START_DATE_STR = '2021-05-11'
+END_DATE_STR = '2021-05-31'
+
+# datetime 객체로 변환
+start_date = datetime.strptime(START_DATE_STR, '%Y-%m-%d')
+end_date = datetime.strptime(END_DATE_STR, '%Y-%m-%d')
+
+# 로거 설정
+logger = get_logger('upsolution')
+
+def login(driver, config):
+    logger.info("사이트 접속 및 로그인 시도")
+    driver.get("https://asp.upsolution.co.kr/")
+
+    driver.find_element(By.XPATH, '/html/body/form/div/div/div[2]/div[2]/input').send_keys(config['upsolution']['id'])
+    driver.find_element(By.XPATH, '/html/body/form/div/div/div[2]/div[3]/input').send_keys(config['upsolution']['code'])
+    driver.find_element(By.XPATH, '/html/body/form/div/div/div[2]/div[4]/input').send_keys(config['upsolution']['pw'])
+
+    login_btn_xpath = '/html/body/form/div/div/div[2]/div[6]/div/button'
+
+    WebDriverWait(driver, 10).until(
+        EC.element_to_be_clickable((By.XPATH, login_btn_xpath))
+    )
+    driver.find_element(By.XPATH, login_btn_xpath).click()
+
+    logger.info("로그인 버튼 클릭 완료")
+
+def set_date_range(driver, start_date, end_date):
+    logger.info(f"날짜 설정: {start_date.strftime('%Y-%m-%d')} ~ {end_date.strftime('%Y-%m-%d')}")
+    driver.get("https://asp.upsolution.co.kr/SalesReport/SalesByReceiptDetail/100482")
+
+    WebDriverWait(driver, 10).until(
+        EC.presence_of_element_located((By.XPATH, '/html/body/div[6]/div/div/div[11]/div[2]/div[2]/div/dl[1]/dd/span[1]/span/input'))
+    )
+
+    start_input = driver.find_element(By.XPATH, '/html/body/div[6]/div/div/div[11]/div[2]/div[2]/div/dl[1]/dd/span[1]/span/input')
+    end_input = driver.find_element(By.XPATH, '/html/body/div[6]/div/div/div[11]/div[2]/div[2]/div/dl[1]/dd/span[2]/span/input')
+
+    start_input.clear()
+    start_input.send_keys(start_date.strftime('%Y-%m-%d'))
+
+    end_input.clear()
+    end_input.send_keys(end_date.strftime('%Y-%m-%d'))
+
+    # 조회 클릭
+    driver.find_element(By.XPATH, '/html/body/div[6]/div/div/div[11]/div[2]/div[2]/div/div/div/a[1]').click()
+    logger.info("조회 버튼 클릭")
+    time.sleep(2)
+
+def get_item_count(driver):
+    try:
+        count_text = driver.find_element(By.XPATH, '/html/body/div[6]/div/div/div[11]/div[2]/div[3]/div/div[4]/span').text
+        count = int(count_text.split('of')[1].split('items')[0].strip().replace(',', ''))
+        logger.info(f"아이템 수: {count}")
+        return count
+    except:
+        logger.warning("아이템 수를 가져오지 못함, 0으로 처리")
+        return 0
+
+def download_excel(driver):
+    logger.info("엑셀 다운로드 버튼 클릭")
+    driver.find_element(By.XPATH, '/html/body/div[6]/div/div/div[11]/div[2]/div[2]/div/div/div/a[2]').click()
+
+def move_and_rename_file(download_dir, start_date, end_date):
+    downloaded_file = wait_download_complete(download_dir, ".xls")
+    new_name = f"sales_{start_date.strftime('%Y%m%d')}_{end_date.strftime('%Y%m%d')}.xls"
+    target_path = os.path.join(download_dir, new_name)
+    shutil.move(downloaded_file, target_path)
+    logger.info(f"[DONE] 파일 저장 완료: {target_path}")
+
+def main():
+    config = load_config()
+    chrome_options = Options()
+    chrome_options.add_experimental_option('prefs', {
+        "download.default_directory": DOWNLOAD_DIR,
+        "download.prompt_for_download": False,
+        "safebrowsing.enabled": True
+    })
+
+    driver = webdriver.Chrome(options=chrome_options)
+    try:
+        login(driver, config)
+
+        start = start_date
+        end = end_date
+
+        while True:
+            set_date_range(driver, start, end)
+            count = get_item_count(driver)
+
+            if count <= 20000:
+                download_excel(driver)
+                time.sleep(5)
+                move_and_rename_file(DOWNLOAD_DIR, start, end)
+                break
+            else:
+                diff_days = (end - start).days
+                logger.warning(f"{count}건 초과 → 날짜 범위 축소 필요 ({diff_days}일)")
+                if diff_days > 10:
+                    end = start + timedelta(days=10)
+                elif diff_days > 5:
+                    end = start + timedelta(days=5)
+                elif diff_days > 1:
+                    end = start + timedelta(days=1)
+                else:
+                    logger.info("이미 1일 범위, 바로 다운로드 시도")
+                    download_excel(driver)
+                    time.sleep(5)
+                    move_and_rename_file(DOWNLOAD_DIR, start, end)
+                    break
+    finally:
+        driver.quit()
+        logger.info("브라우저 종료")
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file