Portable storage rack

The utility model provides a portable commodity shelf, which belongs to the field of commodity shelves, and comprises a first support frame, the bottom end of the first support frame is rotatably connected with universal wheels, the top end of the first support frame is provided with a first extension groove, and the inside of the first extension groove is slidably connected with a second support frame. When the commodity shelf does not need to be used, the pull rod at the second supporting frame can be pulled, the pull rod can drive the fixing block to move out of the fixing groove, the commodity box at the third supporting frame can fall into the commodity box at the second supporting frame, the pull rod at the first supporting frame continues to be pulled, and then the commodity shelf can be used. By means of the arrangement, the storage box at the second supporting frame can fall into the storage box at the first supporting frame, layer-by-layer folding and unfolding are achieved, the overall size of the