The domestic responsible authority has not established uniform assessment criteria in construction for contractors. Its inability to assess construction management effectively has made it very difficult to promote the construction quality. Aiming at the construction progress, quality control, safety, hygiene, surrounding environment, communication, traffic maintenance and organization management, this study tries to establish an assessment mechanism to be executed periodically to monitor the construction management of a contractor and promote performance of the quality management. The assessment subjects, which are decided after consulting with experts and through statistic analysis, have 7 primary and 25 secondary items. Thereafter, questionnaires and the analytic hierarchy process (AHP) are adopted to determine the weights of assessment items and finally, a check form including the assessment items and weights is set up.