no. According to the provisions of Article 35 of the Food Safety Law of the People's Republic of China, the state implements a licensing system for food production and operation, and should obtain a license in accordance with the law to engage in food production, food sales and catering services. Only after the catering license is completed can it start formal business. Trial business is also equivalent to formal business and needs to bear legal responsibilities. Therefore, it is not allowed to start trial business without complete documents.