The present invention discloses a flexible micro device display panel which comprises a substrate, a plurality of micro light emitting units, a first trace line, and a backup conductive line. The substrate comprises a display region having a bending area and a non-bending area. The plurality of micro light emitting units are disposed on the substrate within the display region. The first trace line is arranged from the non-bending area to the bending area. The backup conductive line is disposed at a second metal layer and coupled with the first trace line. The first metal layer and the second metal layer are disposed on the substrate, and the distance between the substrate and the first metal layer is different from the distance between the substrate and the second metal layer. The backup conductive line is not disposed within the non-bending area.