A cargo transport device comprises a container carriage and a container. Guiding ribs which are located on the left and right symmetric axes and extend back and forth are arranged on the bottom wall of an inner cavity of the container carriage, and guiding grooves matched with the guiding ribs are formed in the bottom wall of the container; two bilaterally symmetrical step grooves are formed in the bottom wall of the container, and first limiting grooves are symmetrically formed in the two sides of the step grooves; lifting devices extending into the step grooves are arranged on the bottom wall of the inner cavity of the container carriage in a bilaterally symmetrical mode, each lifting device comprises a sliding groove with an opening facing the inner cavity and a sliding plate installed in the sliding groove in a sliding mode, a threaded sleeve is fixedly installed in the center of the lower end of each sliding plate, a lifting threaded rod is installed in each threaded sleeve in a thread fitting mode, and each lifting threaded rod is in power connection with a lifting motor fixedly installed at the bottom end of the corresponding sliding groove.