The invention discloses a power transformation equipment jacking device and an adjusting mechanism thereof. The adjusting mechanism comprises a retractable frame, a first supporting plate, a hydraulic cylinder, a control motor and a platform, wherein the retractable frame is capable of retracting in a vertical direction; a first guide rail is horizontally arranged at the upper end of the retractable frame; the first supporting plate is arranged on the first guide rail; a second guide rail, which is vertical to the first guide rail, is horizontally arranged at one side of the first supporting plate; a second supporting plate is arranged on the second guide rail; the platform is arranged on the second supporting plate. When the adjusting mechanism is used, power transformation equipment is located on the platform, and the first supporting plate and the second supporting plate are driven by the control motor to move and position adjustment of the power transformation equipment on the horizontal plane is realized, so that a position of the power transformation equipment on the horizontal plane is more accurately adjusted. Furthermore, under the action of the retractable frame, the power transformation equipment can be hoisted in the vertical direction, so that the power transformation equipment moves in the vertical direction, and an installation position of the power transformation equipment is adjusted, and furthermore, the installation efficiency of the power transformation equipment is improved.