Legal analysis: 1. The filing certificate of small food stores is a proof that the "three small" (that is, small food workshops, small food stores and small stalls) are widely distributed, small in scale and large in quantity, which not only facilitates people's lives, but also has certain security risks and strengthens the implementation of management. Operators of small-scale shops need to apply for a small-scale shop registration certificate if they want to operate. If the previously obtained food business license (catering service license and food circulation license) is within the validity period, there is no need to apply for a small store registration certificate (unless the parties apply for change). The registration certificate and filing card are also the "identity cards" of the "three primary schools". 2. The Food Business License, also known as the Catering Service License, is a catering service license issued to units and individuals engaged in food production and business activities after examination and approval by the health administrative department.

Legal basis: Article 33 of People's Republic of China (PRC) Food Safety Law mainly includes four aspects:

First, it has food raw material processing, food processing, packaging and storage places suitable for the variety and quantity of food it manages, keeping the environment of the places clean and tidy, and keeping a prescribed distance from toxic and harmful places and other pollution sources;

Second, it has production and operation equipment or facilities suitable for the variety and quantity of food produced and operated, and has corresponding equipment or facilities such as disinfection, changing clothes, washing, lighting, ventilation, corrosion prevention, dust prevention, fly prevention, rodent prevention, insect prevention, washing, wastewater treatment and garbage and waste storage;

Third, there are professional and technical personnel, managers and rules and regulations to ensure food safety;

Fourth, it has a reasonable equipment layout and technological process to prevent cross-contamination between food to be processed and direct food, raw materials and finished products, and to avoid food contact with toxic and unclean substances.