Business license is a certificate issued by the administrative department for industry and commerce to enterprises and individual operators to engage in certain production and business activities. Its format shall be uniformly stipulated by the State Administration for Industry and Commerce. Without a business license, industrial and commercial enterprises or individual operators are not allowed to start business, engrave official seals, sign contracts, register trademarks or advertise, and banks are not allowed to open accounts. A business license is a license for a natural person or organization to legally carry out organizational activities in China. According to the organizational form, it can be divided into the following common types: limited liability company, joint stock limited company, partnership enterprise (general partnership and limited partnership), collective ownership, group company, sole proprietorship enterprise and individual industrial and commercial households. The embodiment of this organizational form in the business license is the type.