Since 2003, he has been engaged in the certification and audit of quality, environment, occupational health and safety management system for more than 10 years, served hundreds of large and medium-sized construction enterprises, and accumulated more than 2000 audit person days.

In 2017, as a participant in the sustainable development management system certification, the certification center of China Construction Association issued the first large-scale event sustainability management system certification certificate, which is also the first ISO 20121 Certificate in China.

In 2017, he participated in the EPC project training organized by the company, and served as the team leader in the group audit of China Petroleum Engineering Construction Co., Ltd. and China Petroleum Engineering Design Co., Ltd. (CPE) in 2017.

In 2017, the professional course of auditor continuing education was released on the network training platform of China Certification and Accreditation Association, professional knowledge of construction engineering QMS, EMS and OHSMS and key points of construction site audit.

In 2018 and 2019, he participated in the training on the construction of double prevention mechanism organized by the company and COFCO group, led the consultation and guidance on the construction of double prevention mechanism of Chinese textile enterprises under COFCO group, achieved good work results, and his rigorous working attitude was recognized by the leaders of the enterprise and the group.