To analyze the effect of organic snow melting agent on the asphalt performance and its mechanism, three indexes and viscosity of the soaked asphalt were measured. Changes and microphase parameters of the soaked asphalt in macroscopic representation were observed. Change of penetration during the corrosion cycles was quantified based on the Verhulst model. The results show that the organic snow melting agent is similar to asphalt, which weakens the high, low and anti aging properties of asphalt. Surface characteristics of the base asphalt showed visible changes such as corrosive holes and dissolution sunken. Fluorescence phases of the SBS molecules was “reunited” in linear or bulk pattern. The calculation results show that the micro pore area and diameter of the asphalt changed in varying degrees.The change of penetration conforms to the Verhulst model.