To analyze the psychological effects and the role of ICU nursing care quality. Methods: 80 cases in our hospital ICU patients with severe, for example, were randomized to usual care for patients with the control group, the experimental group increased psychological care of patients in the control group on the basis of observation and intervention comparing two groups of patients. Results: The scores of patients with SAS and SDS scores greater improvement compared to the magnitude of the control group, higher satisfaction compared to the control group, differences are significant, statistical y significant, P <0.05. Conclusion: Patients with severe psychological care for ICU intervention can improve the psychological status of patients, the prognosis for patients with a positive effect.