An LED lamp comprises a mounting assembly, a lifting assembly, a radiating assembly, an LED light-emitting assembly and a light rendering assembly; the lifting assembly and the mounting assembly are in sliding connection, the radiating assembly is connected with the lifting assembly, the LED light-emitting assembly is arranged on the radiating assembly, and the mounting assembly comprises a buffer box, a mounting cylinder, a water inlet pipe, a water outlet pipe, a first valve, a water pump and a second valve; the lifting assembly comprises a sliding plug and a lifting rod body; the radiating assembly comprises a radiating base, a plurality of radiating bend rods and a plurality of radiating covers; the LED light-emitting assembly comprises a plurality of LED bulbs; the light rendering assembly comprises a pasting film, an embedding film and a plurality of light rendering particles; the pasting film is pasted on the inner side wall of one radiating cover, and the embedding film is attached to the pasting film; according to the LED lamp, through the mounting assembly and the lifting assembly which are matched, the lifting rod body can stably ascend and descend along the inner side wall of the mounting cylinder, and therefore the LED bulbs can be driven to stably ascend and descend, and safety is higher.