Psoriasis red light treatment is effective, in the conventional treatment means, phototherapy is a relatively small side effects and better therapeutic effect of the treatment method. Psoriasis is a kind of chronic scaly skin disease caused by the interaction of many factors such as environmental stimulation, genetic control, immune abnormality, etc. Psoriasis has more treatment means, such as local treatment, systemic treatment and physical treatment, among which physical phototherapy is a kind of treatment means with better effect in the treatment of psoriasis, and the phototherapy is also characterized by small side-effects, convenience, speed and safety. There are many types of psoriasis, and it can involve the whole body skin, usually manifested as red patches of skin, covered with silvery-white scales, accompanied by obvious itching, and some patients will also have symptoms such as joint swelling, pain and discomfort, so it is necessary to take timely and active treatment to control the condition and slow down the aggravation of the symptoms.