A cement-based permeable crystalline waterproof material, as well as its production process and construction method, takes cement as the main raw material, the cement content is 50-65% of the total weight, and other components are active substance 5.5- 14.5%, methyl cellulose thickener 3.5-8.0%, anhydrous citric acid retarder 2.0-4.5% and ground quartz sand 20.40%. Using this permeable crystalline waterproof material, the problems of poor impermeability and waterproof performance of concrete and frequent cracks are solved. When fresh concrete is poured, dry powder or water is mixed, and the water-facing surface or back surface of the concrete structure is painted, which plays the role of seepage prevention and waterproof to make up for the tiny cracks in the concrete structure. It has the characteristics of extensive raw materials, low cost, simple production process, simple waterproof construction, short construction period, non-toxic, tasteless, permeable crystallization, impermeability and good waterproof performance, and can be used for waterproof, plugging and moisture-proof projects of various impermeable concrete and concrete structures.