To provide a blood pressure measuring device that allows the wrist on which it is mounted to be selected.SOLUTION: A blood pressure measuring device 1 includes: a pair of attaching parts 41 provided at a position opposed to a region where the artery of the wrist 100 is present, each having an end surface curving following the shape of a part in a circumferential direction of the right and left wrists； fasteners 43 that can be detachably attached to the pair of the attaching parts 41； and a sensing body 42 mounted to the selected one of the pair of attaching parts 41 for detecting the pressure of the artery.SELECTED DRAWING: Figure 7【課題】装着する手首を選択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１００の動脈が存する領域と対向する位置に設けられ、左右の手首の周方向の一部の形状に倣って湾曲する端面をそれぞれ有する一対のアタッチ部４１と、一対のアタッチ部４１に着脱可能な固定具４３と、一対のアタッチ部４１の選択された一方に装着され、動脈の圧力を検出するセンシング本体４２と、を備える。【選択図】 図７
