Buoyancy regulation and control lifting type breeding caisson

The utility model discloses a buoyancy regulation and control lifting type breeding caisson, which comprises a breeding box body and a counterweight piece, the counterweight piece is hung below the breeding box body, the breeding box body comprises a box body supporting frame, a netting box body, a constant-volume buoyancy cabin and a variable-volume buoyancy cabin, and the box body supporting frame comprises a central column, a steel skeleton frame and a middle ring frame; the upper end of the center column is connected with the steel framework, the variable-capacity buoyancy compartment is connected with the lower end of the center column, the middle ring framework is fixedly connected in the circumferential direction of the outer side of the variable-capacity buoyancy compartment, the constant-capacity buoyancy compartment is arranged between the steel framework and the variable-capacity buoyancy compartment and can slide in a lifting mode along the center column, and a traction strip is arranged between t