The invention provides a heavy cargo transferring device and belongs to the technical field of transportation. By means of the heavy cargo transferring device, the technical problem that existing light-weight transferring devices are poor in carrying capacity is solved. The heavy cargo transferring device comprises long-strip-shaped bodies and long-strip-shaped cover plates, wherein each cover plate is arranged above the corresponding body. The cross section of each body is in a U shape. Multiple rolling wheels are connected to the bottom of each body. Each body is internally provided with jacking components. The lower end of each jacking component is fixedly connected to a base plate of the corresponding body. A jacking rod of each jacking component extends out of the corresponding jacking component. Each cover plate is fixedly connected to the upper ends of the corresponding jacking rods. A reinforcing plate is arranged between each jacking component and each of two side plates of the corresponding body, wherein each reinforcing plate is perpendicular to the corresponding base plate. Each reinforcing plate is fixedly connected to the base plate of the corresponding body and extends in the length direction of the corresponding body. The inner side of each reinforcing plate is fixedly connected to the corresponding jacking component. According to the transferring device, through structural adjustment, the integral structure is maintained to be light; and the transferring device transfers cargo conveniently and is good in carrying capacity.