Abstract: The one-component silicone sealing meaterials were solidified under different curing conditions, and the influence of curing temperature and curing time on mechanical properties was analyzed. The results show that:under the curing condition of 50% relative humidity, the mechanical properties of one-component silicone sealing materials which were solidified at 0℃ or 50℃ were worse, and the mechanical properties of one-component silicone sealing materials which were solidified at 10~35℃ were better.