The invention relates to an embedded device multi-user network communication exception handling method which is implemented on the basis of a W5300 network chip. The method can ensure that 1) when a user software program in network communication with the embedded device generates a fault or an application layer anomaly such ad debugging or the like, only the network communication of the embedded device is interrupted and the other operation services of the embedded device are not affected; 2) when the user application layer recovers from an abnormal state, the network communication can recoverto a normal state; and 3) when the embedded device is in a multi-user communication state, only the network communication of the users with abnormal application layers is interrupted and the networkcommunication of other users is normal. The method makes up for the handling defect of a multi-user network chip on an application layer communication anomaly, optimizes the handling strategy of multi-user data transmission, improves the design of multi-user network data transmission in embedded devices, and greatly enhances the reliability and user experience of the embedded device.