Abstract: Objective To evaluate the clinical application effect of double abdominal fixation approach of indwelling catheter in urinary management after operation of Snodgrass for hypospadias(longitudinal incision and rolling tube). 
Methods A total of 112 children with hypospadias who underwent Snodgrass operation were selected as the research objects and randomly divided into observation group and control group according to random number table method, 56 cases in each group. The observation group was treated with abdominal double fixed catheter method, while the control group was treated with the traditional method of fixing urinary catheter in the medial thigh. The incidence of catheter traction pain, poor drainage, urinary fistula and the frequency of C-type catheter fixation device replacement within 24 h after operation were compared between two groups. 
Results The catheter traction pain score of the observation group was lower than that of the control group, the incidence of poor drainage was lower than that of the control group, the frequency of C-type catheter fixation device replacement within 24 hours after operation was less than that of the control group, the difference was statistically significant(P＜0.05). Incidence of urinary fistula between two groups had no statistical significance(P＞0.05). 
Conclusion Abdominal double fixed catheter method can enhance the firmness of the fixed catheter after Snodgrass operation, increase comfort, reduce the poor drainage, the replacement frequency of catheter fixation device and reduce the workload of nursing staff, which can be widely applied in clinical practice.

Key words: hypospadias, Snodgrass, indwelling catheter