To analyze the effect of organic snow-melting agent on the asphalt performance and the mechanism, 20% solution of three kinds of organic snow-melting agent (A3N, A2C and A2A) were made to soak base and SBS modified asphalt, while chlorine salt and pure water control group were set up. Six cycles corrosion was carried out with 7 days as a cycle. Three indexes of asphalt were measured to analyze the effect of snow-melting agents on asphalt’s performance. Meanwhile, three indexes and Brookfield viscosity were examined to investigate the effect of snow-melting agents on anti-aging performance of asphalt after the Rolling Thin Film Oven test. Changes of soaked asphalt in macroscopic representation were observed to analyze mechanism of the corrosion. Phase structure change was observed by fluorescence microscope. Micro pore area and diameter in asphalt were calculated and analyzed using Image-pro plus. Change of penetration during the corrosion cycles was non-linearly fitted based on Verhulst model. It is found that soaked asphalt had weaker ductility and anti-aging performance. A2C, water and chloride salt can improve high-temperature performance of asphalt to certain extent. Surface characteristics of base asphalt showed visible changes. Fluorescence phase of SBS molecule was "reunited". Microscopic pore area and diameter of asphalt showed fluctuating results. Analysis suggests that organic components in A3N, A2C and A2A caused "like dissolves like" between asphalt and the deicing agents and destroyed the network structure of SBS molecule, leading to the decline of extreme temperature and anti-aging performance. Compared with the effects of chloride salt, the corrosive emulsification and dissolution of organic snow melting agents is weaker. Correlation can be seen between the changes of phase distribution, microstructure parameters of asphalt and the changes of performance indexes. The change of penetration conforms to the Verhulst model.