The present invention discloses a health monitoring system and a data collection method of the health monitoring system. The health monitoring system includes an intelligent monitoring system and a micro-monitoring system, wherein the micro-monitoring system is configured to judge whether the intelligent monitoring system is completely started, and if it judges that the intelligent monitoring system is completely started, the micro-monitoring system transmits the human body data information collected by the collection device to the intelligent monitoring system if it judges that the intelligent monitoring system is not completely started, the micro-monitoring system processes the human body data information collected by the collection device and transmits the processed human body data information to a display terminal. The health monitoring system can effectively solve the problem that the intelligent monitoring system fails to monitor the health indicators of a human body during a start process, and can achieve a real-time monitoring function of the health monitoring system on the human body.