Plant growth lamp with illumination angle convenient to adjust

The utility model relates to the technical field of plant cultivation, and discloses a plant growth lamp convenient to adjust irradiation angle, which comprises an arc-shaped frame, a vertically through groove is formed in the arc-shaped frame in a penetrating manner, a base is arranged on the lower side of the arc-shaped frame, and a lamp body is mounted at the lower end of the base. An angle adjusting mechanism for adjusting the angle of the lamp body is arranged on the arc-shaped frame, and a fixing box with a groove formed in the lower side is arranged above the arc-shaped frame. The horizontal displacement adjusting mechanism is arranged so that the left-right position of the arc-shaped frame can be adjusted, the height adjusting mechanism is arranged so that the height of the arc-shaped frame can be adjusted, the angle adjusting mechanism is arranged, the illumination angle of the lamp body can be adjusted through sliding of a threaded column on the arc-shaped frame, and the angle position can be fixed.