A display panel, a display device and a preparation method for a display panel. The display panel includes a first substrate; a conductive structure layer is formed on a side surface of the first substrate, and the conductive structure layer is provided with a binding region close to a side edge thereof; the binding region of the conductive structure layer protrudes from a first end surface of the first substrate, and a protruding part of the conductive structure layer forms a first protruding portion; the first protruding portion bends toward a side of the first substrate away from the conductive structure layer; and a turning portion of the first protruding portion is fixed on the first end surface of the first substrate. The binding region of the conductive structure layer is located at a bending part of the conductive structure layer and is not carried on the first substrate.