Quantity evaluation is one of inspiring means, whose essence is to put into practice the effective external stimulation for inner motivation.Its purpose is to inspire potential, to bring all people's best into full play and to raise the performance of employees. The process of quantity evaluation is also the process of developing employee's potential.Besides quantity evaluation is good for judgement and examination of the title of technical post, in favor of outstanding personnel shaping, optimization and collocation of human resources. This will make personnel management work more scientific and standardized.