The invention discloses an electromagnetic wave spectrum therapeutic instrument. The electromagnetic wave spectrum therapeutic instrument comprises a lamp holder, an arc-shaped connecting piece, a transverse dead lever, a first lifting bar, a second lifting bar and a base, wherein the arc surface of the arc-shaped connecting piece is fixedly connected with one end of the transverse dead lever, and the two ends of the arc-shaped connecting piece are movably connected with the lamp holder through a rotating shaft; and the other end of the transverse dead lever is vertically connected with one end portion of the first lifting bar, the second lifting bar is inserted therein from the other end of the first lifting bar, the rod wall of the first lifting bar is axially provided with a plurality of through holes, the rod wall of the second lifting bar is provided with a clamping hole, the inner surface of the second lifting bar is provided with an elastic clamping piece, and the elastic clamping piece can pass through the clamping hole and the through hole. The electromagnetic wave spectrum therapeutic instrument can realize transverse and longitudinal movement of the lamp holder through the first lifting bar and the second lifting bar, improves the adjustment amplitude of the lamp holder, and is reasonable and compact in structure and convenient to use.