Transfer trailer for transporting precast concrete planks

The utility model relates to the technical field of precast concrete plank transfer, in particular to a transfer trailer for transporting precast concrete planks, which comprises a trailer body and a transfer box, the transfer box is fixed at the upper end of the trailer body, a plurality of storage grooves which are sequentially arranged from top to bottom are arranged on the left side of the transfer box, and a plurality of rotating rollers are rotatably connected to the inner bottom ends of the storage grooves. A plurality of conveying rollers are rotatably connected to the right side of the bearing plate, a top plate is fixed to the upper end of the vehicle body, and a lifting driving assembly is arranged on the left side of the lower end of the top plate; compared with the prior art, precast slabs can be loaded into the corresponding storage grooves more easily in a labor-saving mode, the effect of facilitating loading and transporting is achieved, the precast slabs can be unloaded easily in a labor-savi