There are many types of waterproof coatings, and asphalt waterproof coatings are a common type. At present, the asphalt waterproof coating mainly melts the asphalt and then melts it, and processes it with a high shear emulsifier. The specific steps are: adding the asphalt to the container for heating, or adding the heated and melted asphalt to the container, heating the water in the container, immersing the working head of the emulsifier under the water surface, opening the emulsifier, adjusting the position of the working head, and simultaneously inhaling the asphalt and the water. The working chamber of the emulsifier is high-speed operation of the high shear emulsifier and the asphalt is sheared and emulsified to form an emulsified asphalt. After the initial emulsification of the asphalt, various fillers are added and stirred uniformly, and finally the asphalt waterproof coating is completed. The process is relatively simple and easy to operate, and an emulsifier can complete the entire production process of the coating. The coating equipment is simple in configuration and low in cost, and an emulsifier can meet the requirements for complete coating production.