Objective To discuss the clinical value of the multi-directional lawn mower scanning(MDLMS) method with ultrasound on the diagnosis of pediatric acute intussusceptions. Method Cases of 1000 clinically suspected of intussusceptions were randomly divided into two groups: the routine group consisting of 500 cases examined by the routine scanning method, which is to scan continuously along the intestinal canal anatomical regions from right upper quadrant of abdomen to lower abdomen and pelvic cavity. and the improved group of 500 cases examined by the multi-directional lawn mower ultrasonic scanning method, which is to scan the abdomen continuously as the lawnmower work path each time respectively from four different directions. The ultrasonic examination results of the two groups were recorded respectively, and the air enema,surgery or ultrasonic follow-up results of all the cases were followed up, so as to compare the diagnostic sensitivity，specificity and accuracy of these two ultrasound scanning methods. Result These two groups showed no significant statistical difference in terms of specificity, but the difference in sensitivity and accuracy had statistical significance as the sensitivity and accuracy of the improved group was higher than that of the routine group. Conclusion The multi-directional lawn mower ultrasonic scanning can more easily detect intussusceptions than the conventional scanning method, so that it can reduce missed diagnosis and improve the sensitivity, featuring an important clinical significance, recommended in the clinical diagnosis of infantile acute intussusceptions.