Abstract: Rheological properties of siliconacetylene hybrid resin system which can be used to mold RTM were studied. A flow correction model was establised according to the double Arrhenius equation. This model can be used to fit the viscosity behavior of the resin with different temperatures. Results show that isothermal and dynamic rheological behavior of resin fit in Arrhenius rheology model very well, and the model results and the experimental results are in good agreement.