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In order to solve the problem that the material properties and process parameters cannot be matched in processing two-component silicone rubber in most of current additive manufacturing equipment, active mixing was proposed to apply to the high-resolution molding of two-component silicone rubber and the research was carried out. The method of control variables was used to explore the influence of mixing gap and length of mixing channel on the forming uniformity and mechanical properties of two-component silicone rubber line; and the two-component silicone rubber printing process was optimized based on the analysis of its printing principle. The results indicate that the forming uniformity and mechanical property stability of two-component silicone rubber line increase with the increase of length of mixing channel, and increase with the decrease of mixing gap within a certain range. The silicone foam with complex lattice structure is printed through the optimized process parameters, which proves the feasibility of using active mixing to print two-component silicone rubber. [ABSTRACT FROM AUTHOR]