First of all, using the low-frequency vibration test on asphalt, rubber asphalt warehouse and their RTFOT Short-term aging products have been tested ;Secondly, application of graphic epitaxial method, Cross model and Carreau model fitting for various materials Zero shear viscosity were determined;finally, the creep of matrix asphalt recovery test, creep through phase and recovery phase of asphalt strain response calculation, obtained under the action of static Shi Zai matrix zero shear viscosity of asphalt.The study shows that: Matrix asphalt in low frequency vibration test, with the lower frequency will enter the viscosity stable stage, can use graphical extrapolation method to get the zero shear viscosity; however for RTFOT after aging of asphalt rubber, in a test condition did not enter the viscosity stability phase, not through a graphical extension method to calculate the zero shear viscosity; by Cross model fitting results greater than the same material Carreau model fitting results.