An installation structure between an oven door hinge and a door body is characterized in that the installation structure comprises a main arm body fixed to an oven body and a hinge arm fixed to an oven door, the hinge arm is rotatably installed on the main arm body in a hinged mode through a hinged shaft, and the oven door drives the hinge arm to rotate around the hinged shaft; a safety piece is further hinged to the hinge arm in a swing mode, a buckle groove is formed in the lower end of the safety piece, and when the hinge arm is opened, the buckle groove is clamped to the main arm body to limit the hinge arm to be in an open state. The utility model has the beneficial effects that a traditional screw fixing mode is abandoned, and a simpler, more convenient and quicker mounting method is provided. By means of the design, time and labor needed by mounting and dismounting are greatly reduced, and therefore efficiency is improved. A user can easily complete mounting or dismounting of the hinge without using any professional tool, so that operation of non-professionals is facilitated.