The basic disorder of depression is an altered state of mind or emotion; however, many patients have more somatic symptoms than psychiatric symptoms. A foreign study showed that among 1146 depressed patients, somatic symptoms were the only reason for consultation in 69% of patients who complained. The main manifestations were dizziness, chronic pain in multiple parts of the body, chest tightness and breath-holding, which affected patients’ daily life such as eating, sleeping and activities, but there were no organic lesions or clinical symptoms and signs that could not be diagnosed by various instruments. Patients repeatedly seek treatment and take various drugs, but the effect is not obvious, and individuals suffer a lot. In recent years, as the clinical research on depression continues to deepen, it is clear that depression is an organic disease; there is a co-morbid mechanism of pain and depression due to the dysregulation or impairment of the pentraxin (5-HT) and norepinephrine (NE) systems of the central nervous system highly associated with depression; the treatment goal of depression is clinical cure, and somatic symptoms are the main factor affecting clinical cure; earlier selection of more efficacious antidepressants can provide rapid symptom relief, while effective treatment of somatic symptoms can increase the clinical cure rate. Physiotherapy techniques (abbreviated as physical therapy) can improve the somatic symptoms of depression and supplement medication treatment. The treatment mechanism is briefly described as follows. 1. Sleep therapy to adjust cortical function. Patients with depression have symptoms of sleep disorder, mainly manifested as easy waking and early awakening, shallow sleep and difficulty in falling asleep. Improving sleep can help reduce depression. Some studies have shown that transcranial head magnetic therapy, i.e., low-frequency alternating electrical pulse magnetic field acting on the parietal, frontal, temporal and occipital lobes of the brain, can effectively improve sleep by affecting the bioelectric activity of nerve cells in the corresponding brain regions and regulating the excitatory and inhibitory processes of the cerebral cortex as a whole. 2 . Pain treatment, direct transfer of bad feelings. Chronic pain is the main manifestation of somatoform disorders of depression. There are many ways to improve pain with physical therapy, mainly with electrotherapy, thermotherapy and light therapy. Electrotherapy includes high-frequency, ultra-high-frequency and low-medium-frequency electrotherapy, etc. This therapy mainly influences the development of pain through the theory of sensory crossover or gate control, directly shifts the body’s attention to pain, raises the pain threshold and produces better pain relief, and at the same time can promote the release of endogenous analgesic substances in the brain – endorphins, which can act It can also promote the release of endorphins, the endogenous analgesic substance in the brain, which can act on morphine receptors in the body to exert pain relief. The biological effects of warmth include the effects on the skin and nervous system, reducing the firing frequency of sensory afferent fibers and motor neurons, and alleviating pain caused by tension in extra-subtle muscle fibers; thermal stimulation acts on the heat receptors of the skin, causing vasodilation through axonal reflexes, and improving local blood and lymphatic circulation, which helps local pain production. The heat stimulation acts on the heat receptors of the skin, causing vasodilatation through axonal reflexes, improving local blood and lymph circulation, which helps local pain-causing factors dissipate; light therapy can control the number and cycle of melatonin secretion from the thymus, and 5-HT is the precursor of melatonin synthesis, increased melatonin secretion can reflexively inhibit 5-HT synthesis, and reduced 5-HT is depressed. 3, adjust the mood, reduce tension and uncomfortable feelings. The physical therapy of interference electrotherapy, interference current therapy, pulsed magnetic vibration therapy, etc. with its specific stimulating effect increases the patient’s skin sensation, reduce tension and uncomfortable feelings. American scholars have found that skin contact strokes or massage are effective pain relievers or sedatives. For example, stroking a newborn not only calms him, but also has a positive effect on his health. Newborns who receive stroking cry less, have fewer strange looks, have a more rhythmic heartbeat, and even vomiting and diarrhea do not necessitate the use of drugs. Stimulating effects such as tremors that are apparently comfortable for the patient’s skin can mask, divert or distract the patient from pain. Moreover, it has been found that low-frequency low-intensity pulsed electromagnetic field therapy can produce significant anti-inflammatory effects in addition to certain physiological effects on cells and tissues. 4. Behavioral therapy to cultivate a positive and healthy mindset. According to humanistic psychologist Rogers, people have a tendency to grow in a fundamentally positive way. Exercise therapy, biofeedback therapy and natural physical factor therapy in physical therapy emphasize the active participation of patients. For example, myoelectric biofeedback therapy, with the help of myoelectric contraction signals, instructs patients to train themselves according to the signals and learn to control their own involuntary functions. Patients can discover their potential in therapy, experience the unity of subjectivity and objectivity in the process of therapy, and shift the focus on somatic symptoms. Patients’ participation in exercise therapy and natural physical factor therapy promotes positive growth in human ecology through progressive physical exercise. In conclusion, physical therapy can improve somatic symptoms of depression in many ways and help to increase the clinical cure rate.