After the establishment of the systems of envoy, according to the general acknowledgement in the world, diplomatic and consulate officials kept the living standard of upper-class so-ciety, in order to maintain the image of an honorable constitution, and to ensure the fulfillment of the mission of the country s government.

Take the management practice of directing staffs in Daqing Petroleum Administrationas example,introduce in detail the practice in terms of leaders\' selection and evaluation,and summarize and appraisal its experiences,provide references for perfecting leaders\' management mechanism of state-owned enterprises.