Gu Jianguo entered the Computer Management and Inspection Department of Ministry of Public Security in 1997 and became the first generation of Chinese cyber police. He successively served as the Deputy Director of the Bureau of Public Information Network Security Inspection of Ministry of Public Security and the Director of the Bureau of Network Security Protection, He has made remarkable achievements in defending network security, fighting against cyber crime and purifying the network environment by leading the cyber security police in the network battlefield.