Abstract: A mobile refrigeration equipment with DC drive, comprising a heat preservation library body with inner refrigeration system which compressor is DC variable frequency compressor supplied power by second DC voltage and power supply system which consists of double power DC generator that output the first DC voltage and second DC voltage and battery charging with the second DC voltage. The battery and double power DC generator constitute two kinds of power for DC variable frequency compressor. The power controller is linked among the battery, double power DC generator and DC variable frequency compressor.