Hard rock tunnel boring machine (TBM) is excavated by breaking and stripping the rock through the cutters on the cutterhead. The cutter housing system is the bridge between the cutter and the cutterhead, and its connection reliability and bearing capacity are directly related to the equipment excavation efficiency and construction maintenance cost. Due to the lack of design theory and standard of cutter housing system, it has been unable to meet the needs of safe and efficient development of TBM. The basic principles of the structure design of the cutter housing system were summarized.Based on the loading characteristics analysis and the basic structure size of the cutter housing system, the structural parametric design methods of the cutter and cutter housing system were established. Through the static modeling of the cutter and cutter housing system, the static characteristics under rated load condition, different bolt preload and different working load were analyzed. The stress distribution characteristics and dangerous areas of cutter housing were found out, and the reasons for the cracking and crushing phenomenon in cutter housing were revealed.This study provides reference for the optimal design of cutter housing system in engineering.