The invention discloses a light emitting diode lamp. The light emitting diode lamp comprises a light transmission lamp shade, a lamp housing, a circuit board held in the lamp housing and a light source module mounted on the circuit board, an opening is formed in the lower end of the lamp shade, the lamp housing is connected with the opening of the lamp shade, the lamp shade comprises an upper half part far away from the opening and a lower half part located between the upper half part and the opening, the upper half part is an arc surface with a first radius, the lower half part is an arc surface with a second radius, and the diameter of the opening is more than or equal to the first radius and is less than two times of the first radius.