After graduating from university, he worked in the District People's Procuratorate and the Municipal People's Procuratorate 13 years. He has served as Deputy Procurator-General of the District People's Procuratorate, member of the Procuratorial Committee of the Municipal People's Procuratorate, director of the Public Prosecution Department and director of the office, and began to engage in lawyer business after being transferred to the school. During his tenure as a prosecutor, he presided over about 2,000 cases and 3,000 people were in charge of various criminal cases. By handling cases, he effectively avoided punishment and innocence, corrected misjudged cases and avoided many death sentences; During the lawyer's practice, after defense, the death sentence of the parties to the case was commuted by many people, and other cases were acquitted, dismissed, not prosecuted, suspended, exempted from criminal punishment or mitigated.