The invention discloses a quality process monitoring data integrating method based on a three-dimensional construction model. The quality process monitoring data integrating method includes the steps: (1) building a three-dimensional construction model of a dam: taking unit engineering of the dam as a minimum model unit, and building the three-dimensional dam construction model of the dam according to dividing standards of dam engineering; (2) building unified data integration standards: building unified integration standards of quality process monitoring data in the dam construction process; (3) integrating multi-specialty dynamic data: fusing multiple data systems by the aid of integrated technologies, and converting different source data into needed data formats and data structures. The efficiency of quality process monitoring in the dam construction and the level of dam construction management are improved. According to the integrating method, the three-dimensional construction model of the dam serves as a carrier, the quality process monitoring data in the dam construction process are dynamically integrated in real time, multi-specialty quality process data are dynamically integrated on the unified three-dimensional model of the dam, and the quality processes of the dam is conveniently monitored and managed.