Electrocardio electrode, electrocardio monitoring device and electrocardio monitoring system

The invention belongs to the technical field of electrocardio monitoring, and provides an electrocardio electrode, an electrocardio monitoring device and an electrocardio monitoring system. The invention provides an electrocardio electrode, an electrocardio monitoring device and an electrocardio monitoring system. The electrocardio electrode comprises a conductive part for collecting electrocardio signals, a battery electrically connected with the conductive part and a signal transmission part connected with the conductive part. The shell is used for fixing the conductive part and the battery; the shell is provided with a mounting interface which is detachably connected to an electrocardiogram monitoring device. Therefore, the power supply of the battery is introduced into the electrocardio-electrode, so that a solution which is different from an existing electrocardio monitoring device is provided, and one selectable electrocardio-electrode and an electrocardio monitoring device corresponding to the electroc