The invention relates to an LED lamp. The LED lamp comprises a light source plate and a heat dissipating piece; at least two light emitting units are arranged on the frontal surface of the light source plate; the back surface and/or the peripheral surface of the light source plate is thermally connected with at least one part of the heat dissipating piece; and the at least two light emitting units are distributed from a direction of approaching the heat dissipating piece to a direction of leaving from the heat dissipating piece from dense to loose. The LED lamp has the advantages of improving the heat dissipating power and the heat dissipating capacity of the whole lamp and satisfying enough power requirements of customers.