The ecological high-efficiency dust suppressant is composed of a new multi-functional polymer. The cross-linking degree molecules in the polymer form a network structure, and there are various ion groups between the molecules. Due to the large charge density, it has strong affinity with ions, and can quickly capture and firmly absorb the particulate dust through coagulation, bonding and other functions. After drying, it can solidify into a film on the dust surface, so it has strong dust suppression and dust prevention functions.