PROBLEM TO BE SOLVED: To provide a lightweight perspiration amount measuring patch being easily worn and capable of electrically accurately measuring an amount of perspiration, and a perspiration amount measuring instrument.SOLUTION: A perspiration amount measuring patch 12 includes: a film to be pasted on a measurement object surface by a pressure-sensitive adhesive an opening part formed on the film for passing a water content a moisture adsorption layer 30 fitted to a surface in the opposite side of the pressure-sensitive adhesive of the film and covering the opening part a support body 40 for covering the moisture adsorption layer 30 and a pair of electrodes 42a and 42b between the film and the support body 40 for electrically measuring an amount of water content adsorbed by the moisture adsorption layer 30.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】軽量で簡単に装着することができ、発汗量を電気的に正確に測定することができる発汗量測定用パッチと発汗量測定装置を提供する。【解決手段】粘着剤により測定対象面に貼付されるフィルムと、フィルムに形成され水分が通過する開口部を備える。フィルムの粘着剤とは反対側の面に取り付けられて開口部を覆う水分吸着層30を有する。水分吸着層30を覆う支持体40を備え、フィルムと支持体40の間に、水分吸着層30が吸着した水分の量を電気的に測定するための一対の電極42a,42bを備え、発汗量測定用パッチ12を形成する。【選択図】図2