Bipolar disorder belongs to one of the mental disorders, including bipolar disorder depressive episode and bipolar disorder manic episode. The symptom performance of bipolar disorder mainly includes two aspects, one is the performance of depression, and the other is the performance of mania. Specific as follows: 1, depression performance: mainly have insomnia, early awakening, continuous mood depression, diminished interest, some previous interests, hobbies now can not raise interest, and like to be alone, reluctant to communicate with others, too low self-evaluation, reduced volitional activities, serious people will appear self-harm, suicidal tendencies or behavior. 2, manic episodes: the main manifestations are sleep reduction, excitement, talk a lot, talk incessantly, exaggerated delusions, reckless spending, feeling that one’s ability can do great things, which is seriously inconsistent with one’s normal ability, as well as enhanced volitional activity, hypersexuality, impulsiveness, irritability, and easy conflict with others. In summary, these are the typical clinical manifestations of depressive episodes and manic episodes in bipolar disorder.