The utility model discloses an automobile monitoring device and belongs to the technical field of automobile safety accessories, which comprises cameras, an LCD, a single chip MCU (microprogrammed control unit), a control device and a power supply circuit, wherein the single chip MCU (16 bits) is connected with cameras via an ADC (analog-to-digital converter) and the LED via a digital imaging encoder; the MCU (16 bits) is also connected with the control device, the power supply circuit, an erasable memory and a USB interface; the LCD is placed on a control panel; a key 1 on the control panel is served as an on/off key, a key 2 is served as a Page Up key, a key 3 is served as a Page Down key, a key 4 is served as a Delete key, and a Copy key 5 can memory the picture displayed at present into a related moveable device. The automobile monitoring device can accurately record the process that a criminal commits a crime, timely take evidence, and effectively protect interest of an automobile owner. In addition, the automobile monitoring device is simple to operate and has a reasonable structure.