The invention discloses a soil protection and curing agent for soft rock slopes. The raw materials of the curing agent include the following components in parts by weight: composite resin, neoprene rubber, corn straw, polyacrylic acid, cement, polyethanolamine, polyethylene oxide, Polyvinyl acetate, polyaspartic acid, ammonium sulfate, curing aids; good cohesiveness, curing, fluidity and workability, after contact with the soil, the polymer chains diffuse, penetrate and entangle in the soil particles A net-like film structure is formed on the surface and in the pores. At the same time, a large number of functional groups contained in the polymer chain are combined with the soil particles through chemical bonds, which enhances the water stability of the soil particles, and at the same time changes the hydrophilic properties of the soil particles to form an effective anti-water barrier. Ability to improve the erosion resistance and wind erosion resistance of the soil. The curing agent can interact with the soil, which is beneficial to the growth and development of vegetation. On the basis of curing soft rock slopes, guest soil spraying can be carried out for ecological protection. .