PROBLEM TO BE SOLVED: To provide a blood pressure measuring device capable of suitably inflating a cuff. A blood pressure measuring device (1) has a curler (5) having a cover part (5a) for fixing a device body (3) to the back side of a wrist (200), a first bag-shaped structure (81), and a first bag-shaped structure facing the curler (5). By joining the two sheet members 86 forming 81, the first flow path body 83 is formed integrally with the first bag-shaped structure 81 to fluidly connect the pump 14 and the first bag-shaped structure 81. The pressing cuff including the second bag-shaped structure 91 and the two sheet members 96 forming the second bag-shaped structure 91 are joined to each other to be integrally formed with the second bag-shaped structure 91 and one end of which is the cover portion. The sensing cuff 73 including the second flow path body 92 arranged on the wrist 200 side of 5a and the tension cuff 74 including the third bag-shaped structure 101 are provided. [Selection diagram]【課題】カフを好適に膨張させることができる血圧測定装置を提供すること。【解決手段】血圧測定装置１は、手首２００の手の甲側に装置本体３を固定するカバー部５ａを有するカーラ５と、第１袋状構造体８１、カーラ５と対向する第１袋状構造体８１を形成する二枚のシート部材８６を接合することで第１袋状構造体８１に一体に形成されポンプ１４及び第１袋状構造体８１を流体的に接続する第１流路体８３を含む押圧カフと、第２袋状構造体９１、第２袋状構造体９１を形成する二枚のシート部材９６を接合することで第２袋状構造体９１に一体に形成され一端がカバー部５ａの手首２００側に配置される第２流路体９２を含むセンシングカフ７３と、第３袋状構造体１０１を含む引張カフ７４と、を備える。【選択図】 図２
