The main test methods for delusional disorder are systematic psychological tests and psychological and psychiatric consultations. The main test method is to detect whether the patient has such symptoms, such as whether he or she appears to be particularly sensitive and suspicious, always suspecting that someone is talking about him or her behind his or her back, suspecting that someone is following him or her on the road, feeling that family members or strangers are trying to kill him or her, and in severe cases, feeling that aliens are constantly using instruments to If you have these symptoms and manifestations, you may feel that you are being influenced and manipulated by aliens. If you have these symptoms and manifestations, you can take a systematic symptom scale test, as well as psychiatric consultation and psychiatric consultation, and you can take the negative and positive psychiatric scale test.