PROBLEM TO BE SOLVED: To provide a blood pressure measurement device capable of improving the wearability and capable of appropriately bringing a cuff into close contact with a wrist. A blood pressure measurement device (1) includes a device main body (3) and a wrist (200) in the circumferential direction from the back side of the wrist through one side of the wrist (200) to at least a region on the palm side of the wrist (200) where an artery (210) exists. It has a cover portion 5a that is curved following the movement of the wrist 200 and fixes the device body 3 on the back side of the wrist 200, and the curvature of the end on the short side 5g side from the cover portion 5a is the end on the long side 5h side from the device body 3. The curler 5 is set to be smaller than the curvature of the portion, and the end on the short side 5g side and the end on the long side 5h side are separated, and the curler 5 on the long side 5h side and on the palm side of the wrist 200. And a sensing cuff 73 provided on the inner peripheral surface. [Selection diagram]【課題】装着性を向上可能であって、好適に手首にカフを密着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、装置本体３と、手首の手の甲側から手首２００の一方の側方を通って手首２００の手の平側の少なくとも動脈２１０が存する領域まで、手首２００の周方向に倣って湾曲するとともに、手首２００の手の甲側に装置本体３を固定するカバー部５ａを有し、カバー部５ａからの短手５ｇ側の端部の曲率が装置本体３からの長手５ｈ側の端部の曲率よりも小さく設定され、且つ、短手５ｇ側の端部及び長手５ｈ側の端部が離間するカーラ５と、カーラ５の長手５ｈ側であって、且つ、手首２００の手の平側の内周面に設けられたセンシングカフ７３と、を備える。【選択図】 図２
