PROBLEM TO BE SOLVED: To provide a sensor module whose surface has high surface smoothness capable of securing high sensor accuracy, a manufacturing method of the sensor module, and a blood pressure measuring device.SOLUTION: A sensor module 63 includes: a pressure sensor part 71； a sensor base 72 including a support wall part 72a in which the pressure sensor part 71 is arranged on one principal surface side, and distribution holes 72d to 72g penetrating from the one principal surface side to the other principal surface side are formed； a sensor head cover 73 including an opening 73a at a position opposed to the sensor 71a, which is arranged on the one principal surface side of the support wall part 72a of the sensor base 72 through a gap 79 communicating with the distribution holes 72d to 72g, and the opening 73a； and a soft part 74 that is arranged at the opening 73a and covers the pressure sensor part 71.SELECTED DRAWING: Figure 20COPYRIGHT: (C)2020,JPO&INPIT【課題】表面の平滑度が高く、高いセンサ精度を確保できる、センサモジュール、センサモジュールの製造方法、及び血圧測定装置を提供すること。【解決手段】センサモジュール６３は、圧力センサ部７１と、一方の主面側に前記圧力センサ部７１が配されるとともに、前記一方の主面側から他方の主面側に至って貫通する流通孔７２ｄ～７２ｇが形成された支持壁部７２ａを有するセンサベース７２と、前記センサ７１ａに対向する位置に開口７３ａを有し、前記センサベース７２の前記支持壁部７２ａの一方の主面側に、前記流通孔７２ｄ～７２ｇ及び前記開口７３ａに連通する間隙７９を介して配される、センサヘッドカバー７３と、前記開口７３ａに配され、前記圧力センサ部７１を覆う、軟質部７４と、を備える。【選択図】図２０
