Clearly marked price refers to the behavior of operators to publicly mark commodity prices, service prices and other relevant information when buying and selling commodities and providing services. It is a way to announce the price of goods and services to consumers, including card price, listing price and actual price, indicating the name, origin, grade, specification, model, unit, price, service items and charging standards of goods. It is a method for commercial enterprises to carry out price management and improve service quality. There are three main types of clearly marked prices: one is to use price labels to sell industrial products and food; The second is to buy agricultural and sideline products, such as vegetables, fruits, meat, poultry, eggs and so on. And hang a price tag or post a price list; Third, some large commodities are priced in kind. The contents generally include commodity number, commodity name, origin, trademark, specification, grade, pricing unit, purchase and sale price, etc. The price tag shall be complete, accurate, eye-catching, beautiful, clear, understandable, usable and valuable. The price list, price tag and price tag shall be filled in, exchanged and destroyed by the enterprise price officer, and other personnel have no right to replace or alter them.