Display panel, manufacturing method thereof and display device

The invention discloses a display panel, a manufacturing method thereof and a display device.The display panel is provided with a display area and a non-display area and comprises a substrate, an isolation part and a packaging layer, the isolation part is located in the non-display area, and the isolation part is arranged on one side of the substrate; the packaging layer is located on the side, provided with the isolation part, of the substrate, and the packaging layer covers the isolation part and the substrate; wherein the packaging layer comprises a first inorganic layer and a second inorganic layer which are stacked, the first inorganic layer comprises a first magnetic attraction part, and the second inorganic layer comprises a second magnetic attraction part; the orthographic projection of the first magnetic part on the substrate and the orthographic projection of the second magnetic part on the substrate are at least partially overlapped, and the polarities of the first magnetic part and the second magn