An LED plant light includes a light post, a light body and a rotating member. An elevation angle of the light body is adjusted by rotating the rotating member. The light post includes an adjustable member for adjusting the total length of the light post to adjust the height of the light body. The light body includes a first body portion, a second and third body portions respectively connected to the first body portion. The light angle of the light body can be changed by adjusting the angle between the first and second body portions or between the first and third body portions. The structure not only can meet the lighting use needs from seedling stage to growth stage, but also greatly improve the utilization efficiency of the LED plant light, minimize the planting time of plants to realize modular usage, simple the installation and maintenance and improve economic benefits.