PAM has strong hygroscopicity, good adsorption and dispersibility, good film formation and smoothness of the film, strong affinity to fibers, high strength and low elasticity, and various pastes. Good mutual solubility. The addition of PAM to make a chemical slurry for textile sizing can improve the adhesion, permeability and desizing properties. The textile treated with PAM slurry can produce a compliant, wrinkle-proof and mildew-proof protective layer. Therefore, PAM can be used as a sizing agent and finishing agent for textiles. The use of PAM as a fabric treatment agent can make the fabric anti-static and flame retardant, reduce the sizing rate, reduce the glue spot, the breakage rate of the cloth machine and the desizing. When used as a printing and dyeing auxiliary, it can make the product have strong adhesion and high vividness, and can also be used as a non-silicon polymer stabilizer for bleaching.