The invention provides a channel switching method of switching the channel in a network system, and a network system. The peripheral device can reduce its reconnection time to a mobile communication terminal in a short-range personal wireless communication system including the peripheral device and the mobile communication terminal that performs short-range wireless communication. A short-range communication method of a node in a short-range personal wireless communication system in which communication is performed between at least one Personal Area Network (PAN) and multiple nodes. The method includes monitoring a peripheral PAN to perform short-range communication, and selecting at least one PAN as a result of the monitoring; generating channel information for the selected PAN; and transmitting the generated channel information to a peripheral device connected to the node, and connecting with the selected PAN.