As can be seen from Zheng Yi's resume, the North Korean ambassador should be a deputy ministerial level. 1983, he served as deputy secretary of the CPC Guilin Municipal Committee, mayor of Guilin, and vice chairman of the People's Government of Guangxi Zhuang Autonomous Region. 1990 was transferred to People's Republic of China (PRC) (PRC) as ambassador extraordinary and plenipotentiary to the Democratic People's Republic of Korea. 1993 Deputy Secretary-General of the Eighth the NPC Standing Committee, Chairman of the Preparatory Committee of the Hong Kong Special Administrative Region and member of the Preparatory Committee. 1998 was elected as the deputy to the Ninth National People's Congress and vice chairman of the Foreign Affairs Committee.