Abstract: In this work, an optimal simulation analysis for the injection-molding process was conducted for the ‘fixed sleeve’ injection mould using the Moldflow software and then the maximum cavity pressure parameters were obtained as an output. Based on the process parameters obtained from the Moldflow analysis and using the ABAQUS software, a deformation simulation was performed for the template related to the ‘fixed sleeve’ injection mould to verify the reliability of mould structure. The results indicated that a combination of the simulations based on MoldFlow and ABAQUS softwares could effectively evaluate the structural performance of the mold in case of meeting the molding requirement, which provided a reliable guarantee for the success of injection-molding tests.