McDonald's is an American brand, founded in 1955, belongs to the world's large multinational chain of restaurants. The early translation of McDonald's restaurant in China is "McDonald's fast food", until the later part of the current Hong Kong-style translation of the name "McDonald's". McDonald's mainly sells hamburgers, soft drinks, ice, French fries, fried chicken, salads, fruits and other fast food. McDonald's restaurants are located in 119 countries on six continents, with about 32,000 outlets.

Most McDonald's fast-food restaurants offer both counter and drive-thru service, as well as indoor dining and sometimes outdoor seating. A drive-thru usually has several separate stations: parking, checkout, and pickup, with the latter two usually combined.

The golden rule at McDonald's is "the customer comes first, the customer always comes first". The highest standard of service is quality (Quality), service (Service), cleanliness (Cleanliness) and value (Value), that is, QSC&V principle. This is an important principle that best characterizes McDonald's.

McDonald's attaches great importance to employee training and has established a more complete training system. This provides a reliable guarantee for the licensee to successfully operate McDonald's restaurants and shape the unified image of the "McDonald's" brand. McDonald's training system is a combination of on-the-job training and off-the-job training.