In his early years, he worked as a military assistant. 1934 was hired as an assistant by Dai Li and became the backbone of the military system. He worked in Zhejiang Police Officer School, Wuhan Third Section, Xi 'an Camp and Military Bureau. After the outbreak of the Anti-Japanese War, he presided over the military intelligence operation and mastered the core secrets. After the victory of the Anti-Japanese War, he was promoted to deputy director of the Military Bureau. Later, it was reorganized into the Secrecy Bureau of the Ministry of National Defense, and still served as the deputy director, and served as the director in 1947. /kloc-went to Taiwan Province in 0/949, and the Secrecy Bureau was reorganized as the "Intelligence Bureau of the Ministry of National Defense" and continued to serve as the director. He was elected as an alternate member of the Kuomintang Central Committee. 195610 June 14 died of cancer in Taipei, and was then the director of the Intelligence Bureau of the Ministry of National Defense. Mao Renfeng and Dai Li are fellow villagers and primary school classmates. They entered Guangzhou Huangpu Military Academy before Dai Li, but failed to pass the physical examination. After returning home, they suggested to Dai Li, a rural thug, to go to Guangzhou Whampoa Military Academy, and supported Dai Li to enter Guangzhou Whampoa Military Academy with their own money. It should be said that Mao Renfeng is a noble person in Dai Li. He let the gangster Dai Li know Huangpu, persuaded and funded Dai Li to attend the Whampoa Military Academy, thus changing Dai Li's own destiny. When Dai Li made his fortune in the future, he would never forget the kindness of this fellow villager and be grateful to him. After Dai Li's death, Mao Renfeng became one of the military spy giants. He planned the bombing of Princess Kashmir, which assassinated Premier Zhou. 1959 10 was posthumously awarded as an army general by the national government.