it is not illegal for hotels to raise prices during holidays. It is because under the condition of market economy, the price is determined by the relationship between supply and demand. When the demand is greater than the supply, the merchants have the right to adjust the price appropriately according to the market demand, which is the normal embodiment of the market regulation law. Hotels are private enterprises and have the right to set their own prices, as long as they clearly inform consumers before the price increase. Hotel is a comprehensive facility that provides guests with accommodation, catering, entertainment and other services. The origin of the hotel can be traced back to ancient inns. It was originally designed to meet the needs of travelers for rest and replenishment. With the passage of time, the hotel has gradually developed into an indispensable part of modern society, providing people with comfortable and convenient living environment and services. There are various types of hotels, from luxury five-star hotels to budget hotels. Then there are characteristic homestays and youth hostels, which meet the needs and budgets of different consumers. Hotel services are also very rich, including catering services, business services, leisure and entertainment services, etc. The hotel industry has developed extensively all over the world, especially in tourist hotspots and economically developed cities. The number and quality of hotels are very high, and the hotel industry is also a highly competitive industry. All major hotel brands are striving to improve service quality and innovate service content.