Blood pressure measuring device

The utility model relates to a blood pressure measurement device, which comprises a pressure signal detector, a blood pressure and pulse signal processor and a display, wherein the blood pressure and pulse signal processor comprises a pressure and pulse signal detector, the input signals of a blood pressure detector which are scanned are pre-processed, and clutter is removed, a pulse amplitude envelope line and a pressure curve are formed, and a blood pressure and pulse rate calculator which calculates and assures systolic pressure and diastolic blood pressure according to the pulse amplitude envelope line and the pressure curve. The pulse amplitude envelope line of the utility model is smoothly drawn, which prevents arrhythmia pulse from taking part in the drawing of the pulse amplitude envelope line to affect the accuracy of blood pressure calculation, and the measurement precision is high. The blood pressure measurement device is suitable for an embedded system which is formed by singlechips, and is applied in multi-parameter patient monitors.