Resin modified emulsified asphalt was prepared with tackifying resin. The conventional properties, storage stabilities and bonding mechanical properties of the evaporation residue of modified emulsified asphalt were analyzed before and after aging of evaporation residue. Fluorescence microscope（FM） and Fourier transform infrared（FTIR） spectrometer were used to analyze the phase structure and modification mechanism of modified emulsified asphalt. The results show that the blending of resin contributes a higher softening point of emulsified asphalt before and after the aging of the evaporation residue as well as reduces the needle penetration and ductility, with noticeable attenuation in ductility. When the tackifying resin content is 25%, the pull strength of emulsified asphalt is 141，073MPa at 25，45℃ respectively with excellent bonding mechanical properties. When the tackifying resin content is 20%, 5d storage stability of emulsified asphalt is 3719% which does not meet the specifications