PROBLEM TO BE SOLVED: To provide a blood pressure measurement device capable of suppressing peeling of a curler and a cuff. A blood pressure measurement device (1) is formed by welding a curler (5) curved along the circumferential direction of a part to which a living body is attached and a sheet member (86) formed of two resin materials, and expanded by a fluid. One or a plurality of laminated bag-shaped structures 81 and 101 and a sheet member 86 arranged on the curler 5 side of the bag-shaped structures 81 and 101 are integrally provided. And cuffs 71 and 74 having adhered portions 82 and 104 that are bonded to the curler 5 and have a higher bending strength. [Selection diagram]【課題】カーラ及びカフが剥離することを抑制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、生体の装着する部位の周方向に倣って湾曲するカーラ５と、二枚の樹脂材料で形成されたシート部材８６を溶着することで形成され、流体により膨張する、一つの又は複数が積層される袋状構造体８１、１０１並びに、袋状構造体８１、１０１のカーラ５側に配置されるシート部材８６に一体に設けられ、袋状構造体８１、１０１よりも曲げ強度が高い、カーラ５と接着される被接着部８２、１０４を有するカフ７１、７４と、を備える。【選択図】 図４
