Based on the background of the commercial nuclear heating project- Phase III 900MW nuclear heating project, which is the first cross-prefecture-level city development in China, The construction of torshear type high strength bolt connection in the bolt welding mixed joint of steel structure pipe support was studied.The key points of quality control of torshear type high strength bolt construction were analyzed. This paper mainly analyzes the quality control points of torshear type high strength bolt construction in supervision work.Through multi-stage supervision procedures such as drawing review, design technical disclosure, Pre-site materials acceptance, steel structure installation inspection,using "pre-event, during the event, post-event" quality control ideas, analyzing the key points of construction quality control of torshear type high strength bolt and control ideas, to improve the effectiveness of supervision quality management, ensure the construction quality, and promote the smooth development of the project.