Aiming insurance personnel's indemnifying with favoritism, an incomplete dynamic game model was built by using client-agent in game theory. The games among insurant, insurance personnel and an insurance company were analyzed. The motivating factor of salary, fine and indemnity were found to make the insurance personnel indemnify with justice. The internal controlling mechanism, including supervising and motivating mechanism, and an assessing method of salary for the all employees were established by an insurance company. The company has made great achievement after these measurements were carried out for almost a year.