The invention relates to a water-soluble poly-triazine high polymer material and belongs to the technical field of fine chemistry. The material is characterized in that the skeleton of the high polymer material contains a poly-triazine structure and the side chain of the high polymer material is connected with a water-soluble group. The material is obtained by polycondensation of a triazine compound and diamine or diol; and the synthesis process is simple, and the material can be used for dispersion, flocculation or chelation.