PROBLEM TO BE SOLVED: To inexpensively obtain a urine sampling bag without using water-absorbing resin, which has a shape enabling urine sampling to be easy, has no necessity to transfer the sampled urine and allows that as it is, becomes a not so large volume compared with a quantity of the urine, and has a structure that the urine in the bag hardly spills out even if the bag falls over sideways.SOLUTION: A urine sampling bag: includes an outside film consisting of a front film ( 5 ) and a back film ( 6 ) which adhere to each other at their edges to be sealed and provides the front film with an intake hole ( 3 ) for sampling. An inside film ( 2 ) is provided to be positioned in the inner side than the intake hole. The urine sampling bag has a structure that the urine sampled from the intake hole runs through between the inside film and the front film, and then the urine is held in the inside.COPYRIGHT: (C)2014,JPO&INPIT【課題】採尿しやすい形状であると共に、吸水性樹脂を用いずに、採尿した尿をそのまま移し変える必要がなく、採尿量に比べ、あまり大きな容量にならず、たとえ横に倒してもこぼれにくい構造を持つ採尿バッグを安価に得ること。【解決手段】表フィルム(5)と裏フィルム(6)からなる外側フィルムを互いに周囲で接着して密封し、表フィルムに採取する取り入れ口の孔(3)を設けた採尿バッグにおいて、孔の内側に内側フィルム(2)を設け、取り入れ孔から採取された尿が、この内側フィルムと表フィルムとの間を通って内部に溜められる構造であることを特徴とする採尿バッグ。【選択図】図1