1July 1984 to1May 1986, worked in the Bureau of Standards and Metrology, Huolu County, Hebei Province; 1May 1986 to1September 1999, worked in Hebei Metrology Supervision and Inspection Institute (Zheng Ke); 1September 1999 to March 2009 Hebei Environmental Metrology Technology Research Center (deputy division level); From March 2009 to October 20, 2009, he served as secretary of Hebei Food Quality Supervision and Inspection Institute (middle); 2065 438+00. 7 So far, President of Hebei Food Quality Supervision and Inspection Institute.