electrocardiogram is the simplest, rapid and economical clinical examination method for various cardiovascular diseases (including arrhythmia, ventricular atrial hypertrophy, myocardial ischemic injury, myocardial infarction, etc.) and is the cornerstone of cardiovascular disease testing. Because of the complexity and variability of ECG signal itself, the traditional ECG analysis technology has some limitations, which can not really achieve automatic, rapid and accurate analysis, and must rely on professional doctors to analyze and interpret, and most medical institutions, especially primary hospitals, professional ECG doctors lack of resources, which makes the application of ECG diseases limited, to the majority of primary cardiovascular disease patients to obtain timely and accurate diagnosis and control treatment.