Abstract: The structure and composition of suspension monorail vehicle bogie are analyzed, a corresponding SIMPACK dynamics simulation model is established. On this basis, the force distribution and moment balance formula when the suspension monorail vehicle is passing through the curve sections are summarized. Then, the control variable method is used to analyze the effects of running speed, wheel/rail clearance and radial stuffiness of the guide wheel on the vehicle curve passing performance. The simulation results indicate that the radial load of guide wheel will increase with the wheel/rail clearance increase, and decrease with the increase of guide wheel radial stiffness. In which, the wheel/rail clearance of guide wheel has larger influence on the frame lateral acceleration, but less effect on the lateral acceleration of car body.