A demonstration switch structure of a lamp which comprises: a demonstration test switch which is fixedly installed on a battery case of the lamp, a mechanical press control device which is fixedly installed on the battery case of the lamp and capable of movably pressing a control terminal of the demonstration test switch, a control component of the mechanical press control device extends to a switch window of a packing box of the lamp; the demonstration test switch is installed within the battery case of the lamp, the control terminal of the demonstration test switch protrudes out of a bottom surface of the battery case of the lamp, and a waterproof sleeve is sleeved on an outside of the control terminal of the demonstration test switch; the mechanical press control device comprises a balance bar and a hinge base, the hinge base is fixed to the bottom surface of the battery case of the lamp, the balance bar lies on and is movably hinged to the hinge base, a first end of the balance bar is located below the control terminal of the demonstration test switch and is provided with a control head extending upward to the control terminal of the demonstration test switch, a second end of the balance bar extends out of the bottom surface of the battery case of the lamp and is provided with a manipulation bar extending upward and being perpendicular to the balance bar, the manipulation bar is arranged adjacent to the battery case of the lamp, and an upper end of the manipulation bar is located below the switch window of the packing box of the lamp; the demonstration switch structure is characterized in that, a portion of the balance bar at which the balance bar is hinged to the hinge base is used as a hinge part, a bottom surface of the hinge base is concavely provided with an installing groove for movably accommodating the hinge part of the balance bar, two side walls of the hinge part are convexly provided with a rotation shaft respectively, and a groove wall of the installing groove is provided with two rotation shaft installing holes into which the two rotation shafts are correspondingly clipped. a demonstration test switch which is fixedly installed on a battery case of the lamp, a mechanical press control device which is fixedly installed on the battery case of the lamp and capable of movably pressing a control terminal of the demonstration test switch, a control component of the mechanical press control device extends to a switch window of a packing box of the lamp; the demonstration test switch is installed within the battery case of the lamp, the control terminal of the demonstration test switch protrudes out of a bottom surface of the battery case of the lamp, and a waterproof sleeve is sleeved on an outside of the control terminal of the demonstration test switch; the mechanical press control device comprises a balance bar and a hinge base, the hinge base is fixed to the bottom surface of the battery case of the lamp, the balance bar lies on and is movably hinged to the hinge base, a first end of the balance bar is located below the control terminal of the demonstration test switch and is provided with a control head extending upward to the control terminal of the demonstration test switch, a second end of the balance bar extends out of the bottom surface of the battery case of the lamp and is provided with a manipulation bar extending upward and being perpendicular to the balance bar, the manipulation bar is arranged adjacent to the battery case of the lamp, and an upper end of the manipulation bar is located below the switch window of the packing box of the lamp; the demonstration switch structure is characterized in that, a portion of the balance bar at which the balance bar is hinged to the hinge base is used as a hinge part, a bottom surface of the hinge base is concavely provided with an installing groove for movably accommodating the hinge part of the balance bar, two side walls of the hinge part are convexly provided with a rotation shaft respectively, and a groove wall of the installing groove is provided with two rotation shaft installing holes into which the two rotation shafts are correspondingly clipped.