The invention relates to a communication method of the nodes in a wireless ad hoc network and a node. The method comprises the following steps: sending a first signal to a slave node under a first working parameter, wherein the first working parameter includes a first transmitting frequency; and receiving a second signal replied by the slave node in response to the first signal under a second working parameter, wherein the second working parameter includes a first receiving frequency which is different from the first transmitting frequency. According to the communication method of the nodes in a wireless ad hoc network and the node of the invention, the transmitting frequency and the receiving frequency used in communication between nodes are different. Thus, the influence on (for example, mistaken wakeup) surrounding nodes is avoided. Moreover, the power consumption of the whole network is reduced, and the purpose of power saving is achieved.