A waterproof light emitting module is provided. The waterproof light emitting module comprises a circuit board, a light emitting diode, a light guide plate, and a waterproof layer. The light emitting diode is over the circuit board, and having a light emitting surface, a first non-light emitting surface and a second non-light emitting surface. The light guide plate is adjacent to the light emitting surface of the light emitting diode. The waterproof layer covers the first non-light emitting surface and the second non-light emitting surface of the light emitting diode. The waterproof layer includes an adhesive, a substrate, a recessed portion of the light guide plate, a portion of the circuit board or a combination thereof. A display device including the waterproof light emitting module is also provided herein.