Grass-free, efficient, clean and three-dimensional prawn planting and breeding method

The invention provides a grass-free, efficient, clean and three-dimensional prawn planting and breeding method. The method comprises the following steps of (1) selecting a prawn pond; (2) drying the pond in the sun and cleaning and disinfecting the pond; (3) constructing artificial aquatic plants and a biological floating bed; (4) putting crayfish larvas and intercropping fishes; (5) activating humic acid, microalgae and probiotics to regulate water; and (6) carrying out accurate nutrition and feeding of the feed. The stocking density and stocking specification of the single-season crayfishes are strictly controlled, and a certain number and specification of intercropping fishes are matched; the rice and crayfish pond or the pond in the central China area can be cultured for two seasons, the first season is March to June, the second season is June to September, 70% of commercial shrimps can reach 35g-60g/shrimp, and the yield per mu of a single season is 100kg-125 kg. and zero fishery and medicine input and z