Supporting leg and self-supporting stackable breeding box

The utility model provides a support leg and a self-supporting type stackable breeding box, the self-supporting type stackable breeding box comprises a box body and four support legs, the box body comprises a box bottom plate and box side walls arranged on the periphery of the box bottom plate, the box side walls are provided with chamfers, the upper ends of the box side walls are provided with turnups, the support legs are provided with clamping grooves, and the four support legs are connected with the box bottom plate. The box body and the supporting legs are combined to form a breeding box, tenons are arranged at the top ends of the supporting legs, inserting grooves and grooves are formed in the middle ends of the supporting legs, bearing structures are arranged at the bottom ends of the supporting legs, the tenons can be connected with the inserting grooves in a matched mode, and the breeding box is stacked up and down through the tenons and the inserting grooves of the supporting legs. The large hermeti