A blood pressure measuring apparatus with a cuff comprises a cuff, an inflation unit, a deflation unit, a pressure sensor, a signal record and storage unit, and an operation and analysis unit. The operation and analysis unit is used to control the inflation unit and the deflation unit to increase the pressure within the cuff to a first pressure, maintain the pressure at the first pressure for a specified interval, then increase the pressure to a second pressure, and decrease the pressure. The blood pressure measurement is accordingly finished. The operation and analysis unit calculates an arteriosclerosis index based on a pulse waveform signal when the adjustable pressure unit maintains the pressure at the first pressure.
