The invention discloses a gravity induction vending machine fixing structure, comprising a vending cabinet main body, a partition plate, a support rod structure and a clamping member structure; the vending cabinet main body is a rectangular hollow body, the inner rear side of the vending machine main body is provided with the partition plate, and the partition plate are provided with a hollow; thesupport rod structure is arranged in the vending cabinet main body, the support rod structure comprises a fixing plate, a screw hole, a support rod and magic holes, the fixing plate is used for fixing the vending cabinet main body through the screw hole, the support rod is fixedly connected with the fixing plate, and the magic holes are distributed in the support rod; the clamping member structure comprises a right-angled triangular clamping board and a tenon, and the tenon is located at the right-angle side; the right-angled triangular clamping board is engaged with the magic holes, the other right-angled side is fixedly connected with a support frame, and the top end of the support frame is fixedly connected with the tray through a gravity sensor; and a wiring slot is formed in the vending cabinet main body between the two groups of support rods. The structure of the invention is stable, convenient to install and easy to disassemble, and the multi-layer design is met, thereby achieving an excellent promotional effect in the vending cabinet structure field for the structure in the invention.