The principle of Morita therapy in treating OCD is mainly the use of letting nature take its course and doing what it is supposed to do. The method mainly believes that the existence of OCD symptoms cannot be overcome by one’s own will, so the only way to defeat OCD is to adopt openness and acceptance, to accept the appearance of various compulsive symptoms, to put one’s mind on what one should do, to enable oneself to be fulfilled, to be able to pursue one’s life goals while the symptoms exist, as well as its natural attitude, so that one can defeat the The contradictions of the mind and the anxiety are blocked. In addition, the method of going with the flow and doing what is right can also help patients to develop their abilities and eventually reduce their anxiety to the lowest level and eventually achieve an effective treatment method.