A new Pseudo-3-D model coupled with a thermal model was established. Features of fracture propagation and temperature field were investigated numerically with the consideration of the influence of variable material properties. In the simulation, spot conditions of an oil well in Shanggu oilfield were used. It is concluded that the model can be used to simulate the flow in the cracked well, and the results acquired can also be taken as reference data in fracturing working design of similar oil wells.