Objective To explore the value of psychological nursing in treatment of children caries.Methods 200 children with caries were divided randomly into the experimental group and the control group with 100 cases in each group.The experimental group was given psychological nursing according to different age groups,while the control group only received routine treatment.The compliance degree of children patients were compared between the two groups. Results The compliance degree of the experimental group was better than the control group. Conclusions Psychological nursing can alleviate intense,anxiety,pain,dread of children patients,enhance medical compliance degree,thus ensure the smooth progress of treatment reduce the treatment time greatly,raise working efficiency in order to achieve high quality service.