Based on the thermodynamic properties of chalcogenide glass material Ge23Se67Sb10, the molding process model is established. The effects of molding temperature, friction coefficient and molding rate on the equivalent stress of chalcogenide glass after molding are simulated. Through the comparison with the molding simulation data of L-BAL42 material, the difference between chalcogenide glass and traditional visible light glass in the molding process is discussed, and the parameters of the molding process are optimized. The research results show that the equivalent stress decreases with the increase of molding temperature，the decrease of friction coefficient and molding rate. Compared with the control material, the chalcogenide material Ge23Se67Sb10 is the most suitable for changing the equivalent stress by changing the molding rate.