Uncontrollable emotions are more commonly associated with schizophrenia, or obsessive-compulsive disorder, or mania in clinical practice. If the patient is under the domination of hallucinations and delusions, the inability to control emotions is more common in schizophrenia, so once it is diagnosed as schizophrenia, it is necessary to apply antipsychotic drugs for systematic treatment. If the patient is unable to control his emotions, accompanied by such contents as racing thoughts, high emotions, and enhanced volitional activities, it is often a manifestation of mania, and the effect of applying emotion stabilizers or antipsychotic medication can still be achieved at this time. At the same time, if the patient has compulsive thinking and behavior, accompanied by uncontrollable emotions, at this time, it is diagnosed as obsessive-compulsive disorder, which is mainly treated clinically with antidepressant drug system, such as the application of fluoxetine, sertraline, fluvoxamine, paroxetine, etc. The treatment effect is good.