A method for disclosing, by a Converged Personal Network Service (CPNS) server, Personal Network (PN) information in a CPNS environment is provided. The method includes receiving a PN registration request message including information indicating an information openness level of a Personal Network Entity (PNE), which has been transmitted from the PNE, from a Personal Network GateWay (PN GW) for PN registration of the PNE; checking and storing the information indicating the information openness level of the PNE from the PN registration request message; receiving a service search request message for requesting information regarding a CPNS service provided by the PNE from a predetermined PN GW connected to a predetermined PNE; and checking the information indicating the information openness level of the PNE and providing the information regarding the CPNS service provided by the PNE to the predetermined PNE via the predetermined PN GW.