The invention provides a non-contact dynamic electrocardiogram monitoring system. The system comprises N non-contact electrocardiogram detection electrodes (N is larger than or equal to 2) and an electronic unit. Each non-contact electrocardiogram detection electrode comprises an electrocardiogram sensing electrode, an active protective driving ring and a grounding shielding ring from inside to outside, and insulating supporting components are arranged between the parts. The electronic unit is connected with the N non-contact electrocardiogram detection electrodes through N connection leads. The non-contact dynamic electrocardiogram monitoring system can achieve non-contact measurement, is high in detection precision, and has the real-time data transmission capacity. The flexible manufacturing technology is used, so that the whole system has good wearing comfort.