The process of handling the business license of chess room in Xi 'an is as follows:

1. First, handle the hygiene license, and prepare the application materials, such as application form, hygiene license application form, copy of business license, proof of business place and copy of legal representative's ID card.

2. Then go to the industrial and commercial department for on-site name verification, and submit the materials to the industrial and commercial office for verification and obtaining the business license.

Please note that the application process and requirements for licenses and business licenses may be different in different regions. It is recommended that you consult relevant local departments to obtain more accurate information before applying.