The red light therapy device is a new type of phototherapy equipment that can be applied in hospitals and homes. Its basic principle is to obtain a red visible light band mainly of 600-700nm through a special filter, which penetrates deeply into the human body and has better therapeutic effects. The overall output power of the machine is high (equivalent to over a hundred times that of He Ne laser), and the spot is large (equivalent to hundreds of times that of He Ne laser), providing a better treatment method for some large-area diseases. The light output is divided into "strong" and "weak" levels to adapt to patients with different constitutions. The whole machine adopts a movable floor cabinet design, and the red light lamp head rotates smoothly, greatly facilitating medical workers.