According to Article 225 of the Criminal Law of People's Republic of China (PRC), the crime of illegal business operation refers to the crime of committing one of the following illegal business operations in violation of state regulations. (a) without permission, the franchise, monopoly of goods or other restricted goods as stipulated by laws and administrative regulations; (2) buying and selling import and export licenses, import and export certificates of origin and other business licenses or approval documents stipulated by laws and administrative regulations; (three) without the approval of the relevant competent departments of the state, illegally engaged in securities, futures, insurance business or illegally engaged in fund settlement business; (four) engaged in other illegal business activities, disrupting the market order, and the circumstances are serious. Understanding of "violation of state regulations" in the crime of illegal business operation: at the first level, if an act does not violate state regulations, it only violates local laws and departmental rules lower than state regulations, of course, it does not constitute the crime of illegal business operation; On the second level, if an act violates the state regulations, but the state regulations do not regard it as "constituting a crime"? If criminal responsibility is investigated, the criminal judicial interpretation does not interpret the act as an act of illegal business operation, which certainly does not constitute the crime of illegal business operation. The third level, if an act violates the provisions of the state, the state stipulates that the act constitutes a crime? Investigate criminal responsibility ",but if the criminal judicial interpretation does not clearly explain the behavior as the crime of illegal business operation, it certainly does not constitute the crime of illegal business operation, such as operating without a license.