Cement-based permeable crystalline waterproof coating is a powder waterproof material made of special Portland cement, refined quartz sand, etc. as the base material and infiltrated with various active substances. The product has catalytic activity. After encountering water, the active substance in the material penetrates into the concrete with water as a carrier, and can continuously produce chemical reactions to produce water-insoluble needle-like crystals with the cement hydration products. Fills the capillary channels and microscopic gaps inside the concrete, thereby improving the compactness and waterproofness of the concrete.