The invention discloses a mounting structure of an LED power module. The mounting structure comprises a plug of which the right end is connected to an LED lamp, and the outside surface of the right end of the plug is provided with three clamping pieces which are of arc structures; one ends of the clamping pieces are hinged with the right end of the plug through hinge pins, and the other ends of the clamping pieces come into contact with the LED lamp; the left end of the plug is connected to a plug cover of which the right end is open, and the left end of the plug cover is closed; the left endface of the plug cover is provided with threaded holes, and the plug cover is internally provided with a circular stress plate connected to the plug cover with screws; and the right side of the stressplate is provided with a mounting plate which is provided with a power baseplate, and the power baseplate is used for arranging the LED power module, and arranged on the mounting plate with the screws. The mounting structure disclosed by the invention has the advantages of simple structure, and easy installation and removal, and the installation function of the LED power module can be achieved; and the problems proposed in the background technology can be solved effectively, and the mounting structure is worthy of promotion.