Choose a bank or payment company: First, you need to choose a bank or payment company as your acquiring institution. When choosing a bank, you need to consider its service quality, charging standards, reputation and other factors, and choose a bank that suits your business needs.

Preparation materials: prepare your own business license, tax registration certificate, organization code certificate, legal person ID card and other documents and materials.

Fill in the application form: fill in the application form provided by the purchaser and submit the above-mentioned prepared documents and materials.

Review: The bank will review your application and evaluate the qualifications of the merchants. The evaluation results may affect your handling fee rate and settlement cycle.

Signing: After approval, it is necessary to sign relevant agreements with the bank, such as acquiring contract.

Install POS machines or other collection equipment: Install POS machines and conduct training, and begin to accept UnionPay card payment.

It should be noted that different banks may have different specific account opening procedures and requirements, so it is best to consult local banks or UnionPay customer service before applying to understand the relevant specific requirements and procedures.