It is a systematic step for the tax bureau to conduct investigation, and enterprises must establish a competitive system to deal with it well. First of all, the enterprise should inform the senior management of the enterprise in time, get the support of the relevant personnel in the business department, and get the information on the choice and basis of internal pricing methods as soon as possible. Moreover, enterprises should also designate the only window on behalf of enterprises, check the information by themselves before each submission, write explanations for possible misunderstandings and submit them together, and pay attention to the consistency between the related party transaction declaration form and the transfer pricing data description for the same period. For the submitted materials, you should keep a backup or copy in a fixed place, and make a written record of each phone call and meeting. It is worth noting that the content and answers of the information cannot conflict with the information of the same period, and the heads of various departments are required to read the information of the same period in advance and make careful preparations.