The present invention provides a body fluid collecting device, comprising: a first sheet having a first opening, having a first surface and a second surface, the first surface is provided with an adhesive layer； and a second opening is provided a second sheet having a third surface and a fourth surface, the third surface and the second surface being joined to each other by a first closed strip region； a third sheet having a fifth surface and A sixth surface, the second sheet and the third sheet are joined to each other by a second closed band region to form a bag body.本發明係提供一種體液收集裝置，包括：設置一第一開口的一第一片材，具有一第一表面及一第二表面，該第一表面設有一黏著層；設置一第二開口的一第二片材，具有一第三表面及一第四表面，該第三表面與該第二表面之間以一第一封閉帶狀區域互相連結；一第三片材，具有一第五表面及一第六表面，該第二片材與該第三片材以一第二封閉帶狀區域互相連結，形成一袋體。
