The invention discloses a method for quickly displaying a reversing video by an Android vehicle machine system. The method comprises the following steps: S100, powering on the Android vehicle machinesystem, and starting an Android system cold machine; S200, loading a bootloader program of a vehicle-mounted processor, guiding the bootloader program, initializing a controller related to the displayof the Android system through the bootloader program, and guiding kernel programs of the Android system and the linux system through the bootloader program; S300, after the linux system is started, loading a reversing video application program; after the Android kernel is started, starting a JAVA virtual machine, and operating an Android application program; S400, using a Linux system applicationprogram to continuously detect whether a reversing signal exists or not, and when the reversing signal is detected, executing a step S500; and S500, acquiring camera video data through a Linux system, and displaying the acquired camera video data on a display screen of the Android vehicle machine. Compared with the prior art in which rapid reversing video display is realized through two modes ofhardware and software, the method has the advantages of low cost, more flexible realization, high reversing video display speed and the like.