In the field of mining and coal washing, using PAM as flocculant can promote the sedimentation of solid in the water recovered by mining and coal washing , clarify the water, and at the same time, recover useful solid particles to avoid environmental pollution. In the sugar industry, it can accelerate the subsidence of fine particles in sugarcane juice. promote filtration and improve the clarity of filtrate; in the aquaculture industry, it can improve water quality, increase the light transmission performance in water, thereby improving the photosynthesis of water; in the pharmaceutical industry, it can be used as a flocculant for separating antimycin, used as an adhesive for tablets and as a process water clarifying; in the construction industry, it can be used as thickening and dispersing for coating, coolant for sawing stone plate and ceramic binder.