ObjectiveTo explore the effect of various forms of psychological intervention on psychological stress,mental state and treatment process of out- patients. Methods 198 outpatients from February 2010 to July 2011 were randomly divided into the observation group and the control group with 99 cases in each group.The control group received conventional treatment and care.The observation group was given multiple forms of psychological intervention on the basis of conventional treatment and care.Both groups were taken with Zung Anxiety Rating Scale (SAS)and the Hamilton Anxiety Scale(HAMA)to measure the psychological stress and the degree of anxiety before and after treatment.The total efficiencies of various disorders for the two groups before and after the diagnosis and treatment were compared. ResultsThere were no significant differences in SAS score and HAMA scores before psychological intervention.After the intervention,the SAS score and HAMA score in the control group were significantly higher than the observation group.The total effective rate after a course of treatment in the observation group was 90.6％.The total efficiency in the control group was 78.8％,which was significantly lower than that of the observation group. ConclusionsThe multiple forms of psychological intervention can reduce the mental stress,ease the patients' emotional state and improve the patients' therapy effect at the same period for out-patients.