option = webdriver.ChromeOptions() option.add_argument('user-agent="Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.146 Safari/537.36"') b = webdriver.Chrome(chrome_options=option) b.delete_cookie('cookie_name') #删除指定cookie b.delete_all_cookies() #删除所有cookie