The invention relates to a portable IP camera and wireless router running method. The working method of the WIFI module in the portable IP camera in a power saving mode includes judging connection with a wireless router is broken, and if yes, connecting with the wireless router again; otherwise sending a heartbeat message to a server through the wireless router; and later, intercepting a Beacon message of the wireless router at a time interval of a DTIM value, and receiving data from the server when the server is judged to send data according to content of the Beacon message. Thus, in the power saving mode, when disconnection with the wireless router is judged, the abovementioned WIFI module actively initiates connection to the wireless router, an IPC main module does not need to be awakened, power consumption of the portable IP camera in the power saving mode can be reduced, and thus standby time of the portable IP camera in the power saving mode can be improved.