Abstract： Objective： To observe the clinical effect of point application with Sanhuang Chengqi Adhesive Plaster combined with gastrointestinal decompression for postoperative abdominal distension in children with congenital heart diseases and its effect on motilin and gastrin in serum. Methods：A total of 110 cases of children with abdominal distension after operation for congenital heart diseases were divided into two groups according to the random number table method，with 55 cases in each group. Both groups were given routine treatment； the control group was additionally treated with gastrointestinal decompression， and the observation group was additionally treated with point application with Sanhuang Chengqi Adhesive Plaster based on the treatment of the control group. Both groups were treated for three days. The clinical effects，the first exhaust time and the first defecation time were compared between the two groups. The comprehensive scores of abdominal distension before treatment and after 12 hours， 24 hours， 48 hours and 72 hours of treatment， as well as the changes in motilin and gastrin in serum before operation，1 day and 3 days after operation were compared between the two groups. Results：The total effective rates were 100% in the two groups， there being no significant difference (P＞0.05)； the cured and markedly effective rate was 70.91% in the control group and 90.74% in the observation group， the difference being significant (P＜0.05). There were significant differences being found in the comparison of the first exhaust time and the first defecation time between the two groups (P＜0.05). There were significant differences being found in the comparison of the comprehensive scores of abdominal distension in each period after treatment and those before treatment in the same group (P＜0.05)； there was no significant difference being found in the comparison of the comprehensive scores of abdominal distension after 12 hours of treatment between the two groups (P＞0.05)， but there were significant differences between the two groups after 24 hours of treatment，48 hours of treatment and 72 hours of treatment (P＜ 0.05). There were significant differences being found in the comparison of motilin and gastrin in serum 1 day and 3 days after operation and those before treatment in the same group (P＜0.05)；there were significant differences being found in the comparison of motilin and gastrin in serum 1 day and 3 days after operation in the two groups (P＜0.05). Conclusion：Point application with Sanhuang Chengqi Adhesive Plaster combined with gastrointestinal decompression has a definite curative effect in treating postoperative abdominal distension in children with congenital heart diseases. It can shorten the first exhaust time and the first defecation time，reduce the comprehensive scores of abdominal distension，and promote the recovery of motilin and gastrin in serum.