The provided are a method and system for monitoring one or more physiological characteristic based on WBAN. The method includes: an node of a micro-network for monitoring the human body acquires physiological characteristic information of the human body; and a hub of the micro-network for monitoring the human body recognizes at least one identifier for identifying a physiological status of the human body according to the acquired physiological characteristic information of the human body, and selects, according to the at least one identifier for identifying the physiological status of the human body, whether to send the physiological characteristic information of the human body to a medical monitoring system terminal via a wireless network or not. According to the method, sign information of the monitored human body may be mastered in first time to provide a strong basis for subsequent treatment.