Radial artery pulse wave contains a very rich cardiovascular system of physiological and pathological information, it is cardiovascular disease prevention, diagnosis and treatment of great significance. The current detection of cardiovascular equipment is divided into two categories: one for the detection of a comprehensive machine, but the volume is too large, the price is high; and the other although small size, low price, but the detection function of a single, both larger application limitations. Therefore, this paper uses the ARM + DSP microprocessor as the core, through the piezoelectric film sensor realtime collection of pulse waveform, through the signal conditioning circuit to deal with noise, baseline drift and power frequency interference on the pulse wave, according to pulse wave characteristics and blood pressure information Ten cardiovascular parameters were calculated, the system integration uC/OSIII microoperating system and STemWin graphical interface to achieve display and interactive features, and finally to achieve miniaturization of equipment, detection of diversification, low price and easy operation of the market demand. Experimental results show that the system hardware and software design is reasonable, can be effective and accurate detection of cardiovascular parameters of users.