To provide a blood pressure measuring apparatus and a manufacturing method of the blood pressure measuring apparatus that can reduce the thickness of the apparatus.SOLUTION: A blood pressure measuring apparatus 1 includes: an apparatus body 3 that composes a channel part 15 for fluid and supplies fluid; bag-like connection parts 83 and 93 composed of a sheet member, which include openings 83a and 93a; and connection plates 84 and 94 having hole parts 84a and 94a communicated with the openings 83a and 93a, whose flexural modulus is higher than that of the connection parts 83 and 93, and which are joined to the connection parts 83 and 93, and bonded to the apparatus body 3. The blood pressure measuring apparatus is provided with cuffs 71 and 73 wound around a living body, which expand when the fluid is supplied to the internal space.SELECTED DRAWING: Figure 11【課題】装置を薄型化できる血圧測定装置及び血圧測定装置の製造方法を提供すること。【解決手段】血圧測定装置1は、流体の流路部15を構成し、流体を供給する装置本体3と、シート部材で構成され開口83a,93aを有する袋状の接続部83,93、及び前記開口83a,93aに連通する孔部84a,94aを有し前記接続部83,93よりも曲げ弾性率が高く構成され前記接続部83,93に接合されるとともに前記装置本体3に接着される接続プレート84,94、を具備し、内部空間に前記流体が供給されることで膨張する、生体に巻き付けられる、カフ71,73と、を備える。【選択図】 図11