The invention belongs to the field of chemical industrial pollution government, and discloses a processing material for chemical wastewater, a preparation method, a system, and a control method. The processing material comprises is prepared from the following materials: 6-8 parts of molecular sieves, 11-13 parts of sulfonated coal, 3-6 parts of polyferric sulfate, 8-11 parts of polyacrylamide, 3%of nitrobacteria wastewater, 9-14 parts of activated carbon, 2-7 parts of soy protein, 5-8 parts of attapulgite, 2-6 parts of sodium lignin sulfonate, 6-7 parts of sodium benzenesulfonate, 5-10 partsof maleic anhydride grafted polypropylene, 3-6 parts of nanometer particle inorganic material, 2-7 parts of bentonite and 3-8 parts of sodium sulfate. According to the processing material for chemicalwastewater, heavy metal ions in water can be effectively neutralized, water quality is purified, and meanwhile, the processing material has a good adsorption function for suspended solids. Water quality is purified, meanwhile, the nitrobacteria can be added to carry out biological purification, and excessive nitrides in the wastewater are decomposed.