The invention discloses a multi-frequency wireless digital-analog compatible mobile communication device which comprises a voice acquisition device, a voice play device, a power device, a key device, a display device, a storage device, a radio-frequency device and a central processing device connected with the voice acquisition device, the voice play device, the power device, the key device, the display device, the storage device and the radio-frequency device. The device disclosed by the invention adopts a wireless digital communication special chip as a core and can realize the functions of digital voice communication, editing, short message receiving and sending and the like through a voice signal digital processing module, a channel coding/decoding function module, a radio-frequency device and interface design. The digital communication special chip has a high integration level and a simple structure, and is low in cost and convenient to manufacture; and with only one external storage chip, a radio-frequency device and corresponding peripheral application circuit, the digital communication function can be realized.