A patch type electrocardiogram (ECG) sensor including base layer having pad form； flexible printed circuit board (FPCB) layer formed on the base layer and having film form； sensor formed on FPCB layer and including plurality of electrodes configured to acquire ECG signals and plurality of electrode circuit parts which are constituted by circuit patterns and the first ends thereof are individually connected to the plurality of electrodes； main body formed on the FPCB layer and connected to second ends of the plurality of electrode circuit parts to converge the plurality of electrode circuit parts； and adhesive layer formed on FPCB layer such that plurality of electrodes are exposed and configured to attach the sensor to human body, connection part configured to transmit the ECG signals to the outside is installed at and connected to the main body, and main body and the connection part are connected by wire.
