A pulse wave detection device which prevents misalignment between the radial artery and the pulse wave detection unit so as to enable highly accurate pulse wave detection while achieving excellent wearability, and a biological information measuring device provided with said pulse wave detection device are provided. The biological information measuring device (10) is provided with: a housing (20) which houses a pulse wave detection unit (22)； a band (40) for fixing the housing (20) on the wrist (W)； a first engagement unit (29) which is provided on a first end (28) of the housing (20) in the circumferential direction of the wrist (W), on the ulna (S) side, and where the proximal end (41) of the band (40) is engaged； a second engagement unit (27) which is provided on a second end (26) of the housing (20) in the aforementioned circumferential direction, on the radius (T) side, and where the band (40), engaged in the first engagement unit (29), is engaged at an arbitrary position (44) in the length direction； and a surface fastener (42) for engaging the distal end (43) with the proximal end (41) in a state of overlap between the proximal end (41), engaged by the first engagement unit (29), and the distal end (43) of the band (40), engaged with the second engagement unit (27). The distal end (43) is engaged in a state in which the tip faces from the detection surface (21) towards the display surface (23).La présente invention concerne un dispositif de détection d'ondes pulsatiles qui empêche un défaut d'alignement entre l'artère radiale et l'unité de détection d'ondes pulsatiles de façon à permettre une détection très précise des ondes pulsatiles tout en permettant d'obtenir une excellente portabilité, et un dispositif de mesure d'informations biologiques comprenant ledit dispositif de détection d'ondes pulsatiles. Le dispositif (10) de mesure d'informations biologiques comprend : un boîtier (20) qui contient une unité (22) de détection d'ondes pulsatiles ； une bande (40
