1969.06- 1974.06 secretary of Changle county water conservancy bureau. 1974.06- 1978.04 secretary of production headquarters office and county leather Committee office of Changle county leather Committee. 1978.04-1980.12, deputy director of the office of Changle county leather Committee. 1980.12-1985.08 Member of Changle County Committee and Party Secretary of Chengguan Commune (during this period: 1983.09- 1985.08 studied full-time in the cadre specialized department of Shandong Agricultural College). 1985.08- 1990.02 deputy head of Changle county government.