Method and system for preventing strong signal blocking in wireless network

The invention provides a method and a system for preventing strong signal blocking in a wireless network, a first node sends a first message to a second node, and the first message carries the current transmitting power of the first node and a received signal margin indication value; the second node adjusts the transmitting power according to the received signal margin indication value carried by the first message, and calculates the received signal margin indication value of the second node; the second node sends a second message to the first node by using the adjusted transmitting power, wherein the second message carries the current transmitting power of the second node and a received signal margin indication value; and the first node adjusts the transmitting power according to the received signal margin indication value carried in the second message. The device adjusts the transmitting power of the device according to the received signal strength of the opposite side, and when the devices approach each ot