< Topic >While having possessed sufficient strength, without using special adhesion means such as ultrasonic welding, the water absorption pad of the underwear for the urine incontinence which can prevent the side neutron leakage of the urine securely it offers the underwear for the urine incontinence which installs the said water absorption pad.SolutionsThe water absorption pad where it has the water repellency tape 2 which, provides the thermal welding surface in the water absorption sheet 11 which provides the tarpaulin on back and one side the water repellency tape paralleling to the margin of the surface of the water absorption sheet with the thermal welding surface 21 as a grain side, from the sewing sticking and portion being attached by sewing 3 loops the loop one section 22 inside to destal side of the water absorption sheet, while canning the destal, way reverse side of the water absorption sheet canning at least to the portion being attached by sewing, in the margin of the tarpaulin heat it welds.< Choice figure >Drawing 2【課題】超音波溶着等の特殊な接着手段を用いることなく、十分な強度を有していながら確実に尿の横漏れを防止することができる尿失禁用下着の吸水パッドと該吸水パッドを取り付けた尿失禁用下着を提供する。【解決手段】裏面に防水シートを設けた吸水シート11と、片面に熱溶着面を設けた撥水テープ2を備え、撥水テープを熱溶着面21を表側にして吸水シートの表面の周縁部に沿って縫着し、縫着部3より内側の折り返し片部22を吸水シートの端部側へと折り返し、端部を被覆しつつ吸水シートの裏側の少なくとも縫着部まで被覆するように防水シートの周縁部に熱溶着した吸水パッド。【選択図】図2