The utility model relates to an electrocardio watch which comprises a bottom shell, a middle frame and a transparent watch cover, the bottom shell and the watch cover are arranged at the bottom end and the top end of the middle frame respectively, a
control circuit board is arranged in the middle frame, a first
electrode electrically connected with the
control circuit board is arranged on the bottom face of the bottom shell, a second
electrode is arranged on the upper surface of the watch cover, and the first
electrode is electrically connected with the
control circuit board. The second electrode comprises an upper electrode part located on the upper surface of the meter cover, a lower electrode part located in the middle frame and a connecting part, the two ends of the connecting part are connected with the upper electrode part and the lower electrode part respectively, and the lower electrode part is electrically connected with the control circuit board. According to the electrocardio watch, a structure used for installing the second electrode does not need to be independently arranged on the middle frame, the occupied space of the second electrode is reduced, the watch can be designed to be thinner, meanwhile, holes or protruding electrodes are prevented from being arranged on the middle frame, and the appearance integrity of the electrocardio watch is maintained.