Disclosed is an electrocardiogram (ECG) signal measuring device, including a detecting units having at least two first signals, a signal processing module and a power supplying module, wherein the first signal detecting unit detects electrocardiogram signals of a biological body, the signal process module receives the ECG signal for rectification processing for allowing the processed ECG signal to be transmitted to an external information display device, and the power supplying module is electrically connected to the signal processing module either via a wire or wirelessly to supply the power, thereby providing an easy-to-use measuring device that can detect ECG signals rapidly to meet the emergency requirements.
