The invention relates to a low power consumption communication node response awakening method and a node thereof. The method comprises the following steps that a first node sends a data packet containing an awakening code and communication data to a second node according to a predetermined strategy, and the awakening code includes a plurality of awakening code fragments which are sequentially arranged; the predetermined strategy is that one awakening code fragment is sent at predetermined time intervals and the communication data is sent after the plurality of awakening code fragments are sent, and the first node is in an interception state in a time interval; the first node receives a response frame replied by the second node after receiving any one awakening code fragment in the interception state; the first node stops sending the subsequent awakening code fragment and directly sends the communication data. In the invention, time for the first node to send the awakening code fragment and time for the second node to receive the awakening code fragment can be reduced and then power consumption of the first node and the second node is decreased.