The deep shale gas reservoir has the geological characteristics of high temperature and high pressure, and the conventional fluid-structure coupling fracturing model cannot describe the effect of temperature field on fracture propagation. In this paper, based on some reasonable assumptions, a full three-dimensional thermo-fluid-solid coupling hydraulic fracturing model is constructed to describe the hydraulic fracture propagation process of deep shale gas reservoirs. Numerical experiments with finite volume discretization and implicit time discretization show that temperature has a significant effect on hydraulic fracture propagation. According to the results of numerical simulation experiments, the following conclusions are drawn: Compared with the conventional model, the fracture model considering temperature field is more difficult to crack and has greater fracturing difficulty; Higher bottom hole temperature makes it more difficult for fractures to expand, and there is a significant difference in fracture length between high temperature environment and normal temperature environment; The larger the coefficient of thermal expansion, the more significant the effect of bottom hole temperature on fracture propagation.