Underground onsite law enforcement recorder

The utility model relates to an underground onsite law enforcement recorder. The underground onsite law enforcement recorder comprises a master control chip, a camera, a memory, a touch display screen, a microphone, a loudspeaker, an LED indicating lamp, a wireless transmit-receive module and a button. The master control chip employs an ARM9 chip; the camera employs an industrial-grade OV7725 enclosed integrated camera module; the memory is composed of a dynamic random access memory (SDRAM) and a static memory, and the SDRAM employs a 64 MB chip, can synchronize with a CPU clock, carries out dynamic data storage, and randomly reads specific address data; and the static memory employs a 32 G SD card. The underground onsite law enforcement recorder, together with a 3G transmission system and a server, forms a whole work system.