A method for manufacturing a light-emitting diode (LED) is provided. The method includes following steps. A LED wafer including a substrate and a plurality of light-emitting units formed thereon is provided. At least a portion of the substrate is removed. The LED wafer is fixed on an extensible membrane, wherein the light-emitting unit faces the extensible membrane. The LED wafer is broken to form a plurality of LED dices separated from each other, wherein each LED dice includes at least one light-emitting unit. The extensible membrane is expanded to make a distance between any two of the LED dices become larger.