There are several kinds of nanofiller's effect on silicone rubber inhibitors had been investigated. The result show that smaller diameter of particle will get better reinforcement effect, when 20nm Fe 2 O 3 amount up to 10%, silicone rubber strength will get to 5.16Mpa, Different filler added into the silicone rubber show that quite different result, Fe 2 O 3 is not only improve tensile strength but also enhance the heat stability of silicone rubber, and heat quality resume from 30.15%up to 86.15% at 500℃.