The invention discloses a lamp capable of controlling a light irradiation angle. The lamp capable of controlling the light irradiation angle comprises a supporting base; a connecting rod is arranged on each of the two sides of the upper end of the supporting base; an LED (Light-Emitting Diode) lamp device which can swing relative to the connecting rods so as to adjust a light exiting angle is arranged between the connecting rods; an adjustment bolt which can fix the LED lamp device is arranged on each connecting rod; the LED lamp device comprises a radiator; a mounting groove is formed in the upper end of the radiator; the lamp capable of controlling the light irradiation angle is characterized in that a PCB (Printed Circuit Board) is arranged in the mounting groove; an LED lamp bead is arranged on the PCB; a lens is arranged at the upper end of the radiator; a lampshade which can fix the lens to the radiator is arranged at the upper end of the radiator. The invention aims to overcome the deficiencies in the prior art, and provides the lamp capable of controlling the light irradiation angle.