The invention discloses an electrocardiosignal collecting wire which comprises at least two electrode slices for acquiring electrocardiosignals, a collector for achieving electrocardiosignal processing and a USB interface for achieving electrocardiosignal transmission. The electrocardiosignal collecting wire is characterized in that the collector is encapsulated in a bar-shaped mounting cavity, connecting wires between the electrode slices and the collector are led out from one end of the mounting cavity, and a connecting wire between the USB interface and the collector is led out from the other end of the mounting cavity. The electrocardiosignal collecting wire has the advantages that the characteristics of wires are utilized ingeniously, electrocardiosignal collecting equipment is designed to be linear, and the electrocardiosignal collecting wire is small in body form and convenient to carry, improves the convenience of examinations and the comfort level of users, is capable of carrying out electrocardiogram monitoring at any time and any where based on an intelligent terminal, and provides convenience for medical staff and patients.