Portable electrocardiogram recorder

The utility model discloses a portable electrocardiogram recorder. Relating to the technical field of medical instruments, including a housing, wherein the shell comprises an upper shell and a lower shell; wherein the upper shell and the lower shell are connected to form a cavity; a control circuit board and a power supply for supplying power to the control circuit board are arranged in the cavity; the top surface of the upper shell is provided with a left-hand electrode slice and a right-hand electrode slice which are respectively contacted with left and right hands of a person to obtain potential difference; an electrocardiogram of a dynamic curve can be generated according to the potential difference; the left-hand electrode slice and the right-hand electrode slice are both electricallyconnected with the control circuit board, the control circuit board is connected with a terminal through wireless transmission, the electrocardiogram recorder is small in size, electrocardiogram canbe detected by directly to