Legal analysis: the limitation of prosecution for the crime of illegal business operation is fifteen years. China's criminal law stipulates the limitation period for prosecution of crimes. If the maximum legal penalty does not exceed five years' imprisonment, the limitation period will expire after five years. If the statutory maximum penalty is not less than five years but not more than ten years, the limitation period for prosecution will expire after ten years; If the statutory maximum penalty is fixed-term imprisonment of not less than 10 years, the limitation of prosecution expires after 15 years; If life imprisonment or even death penalty can be imposed, the limitation period of prosecution will expire after 20 years. According to the provisions of China's criminal law, if an actor violates the crime of illegal business operations and the circumstances are particularly serious, he can be sentenced to fixed-term imprisonment of more than five years and fined, which belongs to the scope of fixed-term imprisonment of more than ten years, so the limitation of prosecution for the crime of illegal business operations is fifteen years.

Legal basis: People's Republic of China (PRC) Criminal Law.

Article 87 Crimes that exceed the following time limits shall not be prosecuted: (1) If the maximum statutory penalty is less than five years of fixed-term imprisonment, five years have elapsed; (2) Ten years if the statutory maximum penalty is fixed-term imprisonment of not less than five years but not more than ten years; (3) Fifteen years if the statutory maximum penalty is fixed-term imprisonment of not less than ten years; (4) Twenty years have passed if the maximum legal punishment is life imprisonment or death penalty. 20 years later, if it is deemed necessary to prosecute, it shall be submitted to the Supreme People's Procuratorate for approval.

Article 88 A people's procuratorate, a public security organ or a state security organ, after placing a case on file for investigation or a people's court accepts a case, evades investigation or trial, and is not limited by the time limit for prosecution. If the victim files a complaint within the time limit for prosecution, the people's court, the people's procuratorate or the public security organ shall file a case but not file it, and it is not limited by the time limit for prosecution.

Article 89 The time limit for prosecution shall be counted from the date of committing the crime. If the criminal act has a continuous or continuous state, it shall be counted from the date when the criminal act ends. If a crime is committed within the time limit for prosecution, the time limit for prosecution of the former crime shall be counted from the date when the latter crime is committed.

Article 225 Whoever, in violation of State regulations, commits one of the following illegal business operations and disrupts the market order, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also, or shall only, be fined not less than one time but not more than five times the illegal income; If the circumstances are especially serious, he shall be sentenced to fixed-term imprisonment of not less than five years, and shall also be fined not less than one time but not more than five times his illegal income or his property shall be confiscated: (1) dealing in franchise, monopoly goods or other commodities whose business is restricted by laws and administrative regulations without permission; (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 payment and settlement business; (four) other illegal business activities that seriously disrupt the market order.