Abstract: Site quality management of an engineering project of NPIC was introduced in this paper. Requirements on organization and management, interfaces, and management of interior and exterior communi-cation were put forward, by description of quality planning, process management, process monitoring and summarization for the engineering projects. By the management of personnel, specifications and procedures, and the control of equipment, material and work surroundings, not only the safety is ensured, but also the quality and schedule of the engineering project were guaranteed, and so the expected quality goals were achieved.