A blood pressure monitor that detects vascular sclerosis is revealed. The blood pressure monitor includes a cuff, an air pump, an air escape valve, a pressure sensor, a processing circuit, a first conversion circuit, and an arithmetic circuit. The cuff is arranged at a users hand and is pumped up and inflated by the air pump while the air escape valve is used to release air from the cuff. The pressure sensor is disposed on the cuff to detect a pressure of the cuff and generate a pressure sensing signal. The processing circuit processes the pressure sensing signal and generates a processed signal that is converted by the first conversion circuit, According to the converted processed signal, the arithmetic circuit calculates a systolic pressure, a diastolic pressure of a user and obtains a vasodilation constant so as to check vascular sclerosis of the user.本發明係有關於一種具測量血管硬化之血壓計,其包含一壓脈袋、一充氣幫浦、一洩氣閥、一壓力感測器、一處理電路、一第一轉換電路與一運算電路,壓脈袋設於一人體之一手部,充氣幫浦充氣壓脈袋,洩氣閥用於對壓脈帶洩氣,壓力感測器設置於壓脈袋,並感測壓脈帶之一壓力而產生一壓力感測訊號,處理電路處理壓力感測訊號並產生一處理訊號,第一轉換電路轉換處理訊號,運算電路依據第一轉換電路轉換後之處理訊號計算出人體之一收縮壓與一舒張壓,並計算出一血管舒張常數,以依據血管舒張常數判斷人體是否血管硬化。12‧‧‧壓脈袋14‧‧‧充氣幫浦15‧‧‧洩氣閥16‧‧‧壓力感測器17‧‧‧處理電路171‧‧‧儀表放大器173‧‧‧濾波器18‧‧‧第一轉換電路19‧‧‧運算電路
