A height-adjustable desk-type electric piano is composed of a bracket body and a desk-type keyboard assembly installed on the bracket body, and an adjustment device for the lifting adjustment of the bracket body is arranged on the bracket body; the desk-type keyboard assembly comprises a desk top and a piano keyboard, and the piano keyboard is drawer-connected in the desk top, which can be extended and retracted; in the piano frame of the electric piano of the invention, the threaded rod is driven to screw in or out in the sleeve rod through gear transmission, thereby forcing the inner rods to perform telescopic movement in the outer rods, and then realizes the lifting adjustment of the piano frame, which can satisfy people of different heights use, and it is integrated with the structure of the desk, so that it can be used as an electric piano or as a desk.