VE (virtual environment) force feedback system based on haptic handle has been widely used in humanmachine interaction field. Stability is the prerequisite for the system to work properly. Firstly, the force feedback device, the virtual interaction environment and operator are modeled independently as independent modules, then the closedloop control model of the force feedback interaction system is modeled based on impedance reconstruction method. The Hurwitz criterion is used to derive the system stability conditions, the frequency response function is used to analyze the influences of the stiffness and damping of virtual environment, the signal hold time interval of the zeroorder holder and the impedance of the operator on the system stability, and the critical stability conditions of the influence factors, such as virtual stiffness, virtual damping, operator impedance and etc. are given. The developed force feedback haptic handle is utilized to construct an experiment system and experiment study is conducted. The system stability under different conditions is analyzed for different frequencies of force feedback and different virtual environment impedance. The experiment results prove the correctness of the theoretical analysis.