Objective　To investigate the clinical application effect of the optimized hierarchical management model based on the advanced system of nursing professional competence. Methods　A total of 500 nurses from 5 secondary or tertiary hospitals in Dazu district of Chongqing were selected and randomly divided into intervention group and control group

with 250 nurses in each group. The traditional management model was adopted for the control group

and the optimized hierarchical management model based on the advanced professional competence system was adopted for the intervention group. The two groups were compared in terms of nursing ability

clinical work quality

and incidence rate of adverse events. All the data were analyzed by SPSS 23.0

Chi-square test and t test were used for statistical analysis. Results　There were no significant differences in age

sex

marital status

professional title

and working years between the two groups (P>0.05). The baseline data were consistent and comparable. Compared with the control group

the intervention group had significantly higher scores of nursing ability [(82.30±3.83) vs. (72.78±5.33)] and nursing quality [(97.53±9.71) vs. (90.17±8.18)]. The intervention group had a significantly lower incidence rate of adverse events than the control group [(0.9% vs. 3.9%)

P<0.05]. Conclusion　The optimized hierarchical management model for nursing staff based on the advanced professional competence system can improve the professional competence and clinical nursing quality of nursing staff

reduce the incidence rate of adverse events

and provide a reference for improving the level of nursing management.