First of all, it should be noted that mixed anxiety and depressive disorders do not belong to the category of severe mental illness. In the clinical anxiety and depression are very common, these two can be said to be difficult, anxiety and depression disorders often show a co-morbid state, such as depression disorder with anxiety or anxiety disorder with depressive symptoms. Mixed anxiety and depressive disorders mean that the patient has symptoms of anxiety and depression, but neither anxiety nor depression meets the corresponding diagnosis of anxiety and depression. So for mixed anxiety and depressive disorder, its treatment is symptomatic antidepressant and anxiolytic treatment, and the prognosis is usually quite good.