A structure of a light emitting diode is provided. In one aspect, a light emitting diode structure comprises a light emitting diode, a conductive frame, and a substrate. The conductive frame is electrically connected to the light emitting diode and has a fixing hole connecting a first side of the conductive frame and a second side of the conductive frame opposite the first side. The fixing hole has a ladder-shaped inner sidewall with a first radius of the inner sidewall adjacent the first side smaller than a second radius of the inner sidewall adjacent the second side. The substrate has a conductive pillar that is received in the fixing hole by entering the fixing hole from the first side of the conductive frame and deformed such that the conductive pillar adheres to the ladder-shaped inner sidewall of the fixing hole.