ECG One-Network is a telecardiology diagnostic service network built on digital technology, centered on leading hospitals of urban medical groups or county-level medical alliances, connecting primary medical institutions (township health centers, village clinics, etc.) to form a hospital-wide regional ECG monitoring network. It features a closed-loop service model: primary-level data collection, upper-level diagnosis, and coordinated treatment. Patients complete ECG tests at primary facilities; data is uploaded in real time to the regional ECG diagnosis center, which issues professional reports within 10 minutes . For critical cases like myocardial infarction, a green channel is activated immediately for rapid treatment or referral. It extends tertiary hospital expertise to grassroots, shortens diagnosis time, enhances primary medical capabilities, and enables full-cycle cardiovascular disease management.