A combination of an article of clothing and ECG electrodes, the combination including a front piece and a back piece. The front piece includes an inner lining and an outer lining. Ten front-end modules of active electrodes, ten lead wires, and an electrical plug are disposed on the outer surface of the inner lining for the purpose of collecting electrical signals. The ten front-end modules are connected to the electrical plug via the ten lead wires, respectively. The front-end modules are riveted on the inner lining by bolts. The outer lining includes a pocket including a through hole. The electrical plug passes through the through hole and is inserted into a Holter system placed in the pocket. A plurality of female buckles for buckling ECG electrodes are disposed on an inner surface of the inner lining.