The study found that changes in meteorological factors will affect the body's physiological parameters change. The current study are based on the subsequent statistical analysis. This paper designs a dynamic acquisition system, used for meteorological factors and a 24-hour ECG synchronization of the collection, and thus reveal the correspondence in meteorological factors and the ECG signal. The system select W78LE516 MCU and CPLD to construct the control circuit and use quickly read and write low power consumption, low-voltage external data memory CF card to save the signal. Finally the data ’s wave can be displayed on the PC.