Telescopic emergency baton

The utility model discloses a telescopic emergency baton. The flashlight comprises a handle part and a light source part, handle part provided with power supply, the light source part is provided withan LED lamp strip; the power supply is electrically connected with the LED lamp strip; a switch button is arranged on the handle part; the light source part comprises a first light source part and asecond light source part; the first light source part and the second light source part are cylindrical; the first light source part is fixedly arranged on the handle part; the second light source partis sleeved in the first light source part; a first positioning hole and a second positioning hole are respectively formed in the upper side and the lower side of the cylinder wall of the first lightsource part; a first sliding groove is connected between the first positioning hole and the second positioning hole, a first boss and a second boss are arranged on the inner cylinder wall of the firstlight source part, the first