The invention discloses a suspension type transformer mounting device, including a vertical plate, both ends of the lower side of the vertical plate are fixedly connected with struts, two sides of thetwo struts are provided with first sliding grooves, each of the first sliding grooves is slidably connected with two transverse blocks, one ends of the two transverse blocks penetrate through the side wall of the first sliding groove and extends to the outside of the strut, a fixing plate is arranged on the rear side of the vertical plate, two T-shaped cavities are arranged on the side wall of the fixing plate, the inside of the two T-shaped cavities is slidably connected with the T-shaped blocks, and the T-shaped blocks are arranged on the side wall of the vertical plate. The invention can fix the fixing plate at the mounting position at the high place through the first fastening ring and the second fastening ring, The transformer is clamped and connected with the vertical plate throughthe clamping hook and the clamping slot on the ground, and each connection part of the device is fixed, and then the vertical plate equipped with the transformer is suspended and connected with the fixed plate, which not only makes the operation of installing the transformer simple, but also reduces the risk of high-altitude operation.