The gypsum-based self-leveling mortar of Qiangnai applies the energy-efficient modified semi-aqueous building gypsum as the gelling raw material, and produces single-component prefabricated dry powder products with ultra-fine inorganic fillers and various polymer modified activators and multi-level aggregates. After being mixed with water, it will form a high-fluidity slurry that can both be manually applied or mechanically applied in a large area. It features automatic and accurate ground leveling and high cost efficiency.