The invention provides an LED packaging structure and a display device. The LED packaging structure comprises a substrate structure, a patterning first conducting layer, a patterning second conducting layer, a bonding layer, a plurality of drilling holes, a metal layer, a plurality of LED chips and a plurality of lenses. The substrate structure is at least composed of a material substrate which is formed by a PCB. The first conducting layer is arranged on one first face of the substrate structure. The second conducting layer is arranged on the second face, opposite to the first face, of the substrate structure. The bonding layer is arranged between the patterning second conducting layer and the second face of the substrate structure. The drilling holes are formed in the substrate structure. The drilling holes penetrate through the patterning first conducting layer, the substrate structure and the bonding layer, and the drilling holes are covered with the second conducting layer. The metal layer is formed on the inner side walls of the drilling holes. The LED chips are arranged on the patterning second conducting layer and are electrically connected with the patterning first conducting layer through the metal layer. The lenses are formed by adhesive films in a casting mode, and the lenses wrap the chips and the second face of the substrate structure completely.