1. Look at the business qualifications of the company headquarters, including business license, tax registration certificate, organization code certificate, trademark holding certificate or certificate, and catering franchise registration certificate or certificate. 2. Look at the honor certificate of the company headquarters. The honor won by a catering franchise company represents the glory and achievements of this company, so it is necessary to examine the original certificate of honor won by this company. 3. Look at the operating characteristics of the company's headquarters, including product characteristics, food characteristics, operating characteristics, management characteristics, service characteristics, etc., and understand clearly the business philosophy and characteristics of catering franchise companies. 4. Look at the operation of the company's direct stores. It mainly examines the operation of the direct stores under the catering franchise companies, including business quality, attendance rate, per capita consumption level, service quality, customer evaluation and profitability. 5. Look at the operation of the company's franchisees and go to the old franchisees to inspect the real profitability and the follow-up support of the headquarters, including the business quality, attendance rate, per capita consumption level, franchisee's evaluation of the company's headquarters, etc. 6. Understand the company's support for franchisees.