A photoelectronic element includes an electrically insulative substrate, an electrically conductive substrate, an intermediate layer and a semiconductor stacked layer. The electrically insulative substrate has a top surface. The electrically conductive substrate has a lower portion, and an upper portion surrounded by the electrically insulative substrate and coplanar with the top surface. The intermediate layer has a first portion formed directly under the electrically insulative substrate and above the electrically conductive substrate, a second portion and a bent portion formed between the first portion and the second portion. The semiconductor stacked layer has an light-emitting active layer with a high band gap, disposed on the electrically insulative substrate and the upper portion.