Localizable and traceable fresh cold chain packaging box based on Internet of Things

The utility model discloses a locatable traceable fresh food cold chain packing box based on the internet of things in the technical field of fresh food cold chain transportation, which comprises a rectangular box, support legs are fixed on the periphery of the bottom end of the rectangular box, three separation mechanisms are arranged in the rectangular box, through holes are symmetrically formed in the side walls of the rectangular box and positioned on two sides of the separation mechanisms, and the through holes are communicated with the rectangular box. A water tank is fixed to the bottom end of the rectangular box, a water outlet pipe with a valve is arranged on the outer side of the water tank, drainage pipes are symmetrically connected to the outer side of the water tank, branch pipes are connected to the positions, close to the through holes, of the drainage pipes, fixedly connected with the side walls of the rectangular box and correspond to the through holes in position, and a box door is arranged