Versatile automobile antitheft alarm

The invention provides a versatile automobile antitheft alarm. The versatile automobile antitheft alarm has a shaking alarm function of giving alarm under the condition of shaking caused when automobile doors and windows are pried by external force, an infrared ray alarm function that an infrared ray alarm gives alarm immediately when someone enters an automobile illegally without causing shaking, an electronic dog function of prompting a driver to reduce speed under the condition of radar speed measurement shooting, a driving recording function of performing video-audio recording in a vehicle running process, a vehicle-mounted MP3 function of playing music via an FM radio in a wireless mode for an automobile without an MP3 function, a navigator function of planning and looking for routes for a driver, and a mobile hard disk function of storing files of a recorder and an MP3. The capacity of the mobile hard disk can be extended. One circuit board integrates the shaking alarm function, the infrared ray alarm function, the electronic dog function, the automobile data recorder function, the vehicle-mounted MP3 function, the navigator function and the mobile hard disk function, so that the cost is reduced, separate purchasing is not needed, and the versatile automobile antitheft alarm has complete functions and is very useful.