The invention relates to a side leakage prevention structure of a urination pants, which mainly includes a pants body and a first water absorption unit stacked on the inside of the crotch of the pants body. The first water absorption unit corresponds to the bottom of the groin of the infant. Through the left and right sides of the bottom, one side baffle is set respectively, even if the urine discharged by the infant is far more or instantaneously more than that of the water absorption unit When the load of water absorption, the side baffle can play a side baffle effect to prevent urine from spilling from the groin of infants.本新型創作係關於一種尿褲之防側漏構造，主要係包括一褲體、及一疊設於該褲體褲襠部內側之第一吸水單元，而該第一吸水單元對應嬰幼兒鼠蹊部處定為底部，透過該底部之左右二側緣分別設一側擋片，即使嬰幼兒所排放之尿液遠超過或瞬間超過該吸水單元所能負荷之吸水量時，該側擋片便可發揮側擋效果，以防止尿液自嬰幼兒之鼠蹊部溢出。
