The invention discloses an emergency cardiovascular care network system and a classification and early warning method thereof. The system comprises a doctor client, an emergency center server system and a 12 lead electrocardiogram collection module, the 12 lead electrocardiogram collection module sends collected information to a medical tablet personal computer through Bluetooth, and transmits thecollected information to the emergency center server system through a 4G wireless network, and the emergency center server system is connected with the medical client. Accordingly, electrocardiogramabnormality symptoms of patients can be classified and pre-warned according to emergencies, medical specialists are helped to judge cardiovascular diseases in the early stage, and the medical treatment time of the patients suffering from the cardiovascular diseases is greatly shortened.