Disclosed is a blood pressure measuring device, comprising a sleeve (8) and a host (4) connected to the sleeve (8), wherein an upstream balloon (1) and a downstream balloon (2) are respectively located upstream and downstream of the flow of arterial blood of a measured limb the downstream balloon (2) is used to detect change information of a pulse signal and sense changes in the pulse of blood flow generated by pressure change of the upstream balloon (1) in real-time and a microprocessor controls an air pump (6) and an air escape valve (7), and processes the pressure value, pulse signal or pressure value and pulse signal of one or both of the upstream balloon (1) and the downstream balloon (2) which are separately or simultaneously detected through one or both of a first pressure sensor (3) and a second pressure sensor (5). The blood pressure measuring device is pressurized by colligating two inflatable balloons on a limb to effectively detect the pressure and pulse signals in the upstream and downstream balloons in order to accurately and reliably measure the blood pressure, and the measurement results thereof are stable.Linvention concerne un dispositif de mesure de pression artérielle qui comporte un manchon (8), un hôte (4) étant relié au manchon (8), un ballonnet amont (1) et un ballonnet aval (2) étant respectivement situés en amont et en aval du flux de sang artériel dun membre mesuré le ballonnet aval (2) est utilisé pour détecter des informations de changement dun signal dimpulsion et pour détecter des changements dimpulsion du débit sanguin, générés par un changement de pression du ballonnet amont (1) en temps réel un microprocesseur commande une pompe à air (6) et une soupape découlement dair (7), et traite la valeur de pression, la valeur de signal dimpulsion ou de pression et le signal dimpulsion du ballonnet amont (1) et/ou du ballonnet aval (2), qui sont détectés séparément ou simultanément au moyen dun premier capteur de pression (3) et/ou dun second
