1. Identity documents: valid identity documents, such as ID cards and passports, are required for entry formalities.

2. Health certificate: According to the requirements of the local health department, you may need to apply for a health certificate before or after employment. A health certificate is usually used to prove that your health meets the requirements of the catering industry. You can consult your employer or local health department to find out the specific process and time.

3. Training certificate: According to McDonald's regulations, you may need relevant training, including food safety and customer service. You need to attend training courses and obtain training certificates in order to meet the requirements of the company at work.

4. Tax formalities: Before starting work, you need to apply for a personal tax registration certificate with the local tax authorities to understand the relevant tax regulations.

In addition to the above documents and procedures, you also need to know the local labor laws and policies, such as minimum wage, working hours, labor protection, and the company's rules and regulations and policies. Please contact your employer or human resources department for more information about the entry procedures and related policies.