The invention provides a shallow-water three-dimensional multi-layer intensive high-density 
aquaculture system which comprises multiple 
layers of shallow-water 
aquaculture tanks arranged up and down, a water injection pipeline, double-layer drainage pipes and 
water treatment integrated equipment, wherein the water injection pipeline is arranged above the shallow-water 
aquaculture tank on the uppermost layer and used for controlling the water injection amount; a water inlet and a water outlet of each layer of shallow-water aquaculture tank are located in the 
diagonal direction of the aquaculture tank, and one double-layer drainage 
pipe is arranged in each layer of shallow-water aquaculture tank; and the lowest layer of shallow-water aquaculture tank is connected with the 
water treatment integrated equipment, and the 
water treatment integrated equipment is used for purifying 
sewage discharged from the upper part. By adopting a self-circulation drainage mode from top to bottom, combining devices such as the double-layer drainage pipes, an unpowered dissolved 
oxygen supercharger and a residue separator and cooperating with water treatment integrated equipment, the water dissolved 
oxygen amount can be increased, the 
water quality can be improved, diseases can be reduced, effects of no emission, no 
pollution, no chemical and no antibiotic can be achieved, and the formed product is green, safe, ecological and 
environmentally friendly.