The invention discloses a method for managing edge ports, which is applied to a rapid ring net protection protocol (RRPP) ring comprising a main ring, one or a plurality of subrings, edge nodes and auxiliary edge nodes. The method for managing an edge port comprises the following steps: when one or a plurality of subrings detects a RRPP main ring channel fault, opening self auxiliary ports by main nodes of the subrings, and blocking the self edge ports by the edge nodes of the subrings; maintaining the information of the main node auxiliary ports which are opened for the RRPP main ring channel fault and the subrings for blocking the edge ports of the edge nodes; selecting one subring from the subrings; and opening the edge port of the edge node of the selected subring. The invention can furthest ensure the maximum connectivity among devices on the RRPP rings.