A method for a Wi-Fi direct connection, the method comprising: detecting, by a first terminal, an event for requesting group connection from a second terminal; determining, by the first terminal, whether the first terminal belongs to a first group when the event for the requesting group connection is detected; determining, by the first terminal, whether the operation mode within the first group is an owner terminal or a client terminal when the first terminal belongs to the first group; exchanging (713, 801), by the first terminal, information of the first terminal where the event for the requesting group connection is detected or group information of the first group to which the first terminal belongs with information of the second terminal, when the operation mode within the first group is the owner terminal; delivering, by the first terminal, the exchanged information of the second terminal to each terminal within the first group; comparing (715, 805), by the first terminal, the exchanged information of the second terminal, the information of the first terminal, and the group information of the first group for determining a master group for the group connection, wherein the comparing comprises comparing an operation mode of each terminal; determining, by the first terminal, the first group to which the first terminal determined as the owner terminal belongs as the master group based on the comparing; delivering (717, 811), by the first terminal, a new group generation progress message to a terminal that is previously connected and a terminal that will be newly connected when the first group is determined as the master group; and connecting, by the first terminal, a new group through a group reset (729, 819) for connecting to a newly connectable terminal while maintaining an existing connection according to the operation mode within the new group when a new group generation is completed. detecting, by a first terminal, an event for requesting group connection from a second terminal; determining, by the first terminal, whether the first terminal belongs to a first group when the event for the requesting group connection is detected; determining, by the first terminal, whether the operation mode within the first group is an owner terminal or a client terminal when the first terminal belongs to the first group; exchanging (713, 801), by the first terminal, information of the first terminal where the event for the requesting group connection is detected or group information of the first group to which the first terminal belongs with information of the second terminal, when the operation mode within the first group is the owner terminal; delivering, by the first terminal, the exchanged information of the second terminal to each terminal within the first group; comparing (715, 805), by the first terminal, the exchanged information of the second terminal, the information of the first terminal, and the group information of the first group for determining a master group for the group connection, wherein the comparing comprises comparing an operation mode of each terminal; determining, by the first terminal, the first group to which the first terminal determined as the owner terminal belongs as the master group based on the comparing; delivering (717, 811), by the first terminal, a new group generation progress message to a terminal that is previously connected and a terminal that will be newly connected when the first group is determined as the master group; and connecting, by the first terminal, a new group through a group reset (729, 819) for connecting to a newly connectable terminal while maintaining an existing connection according to the operation mode within the new group when a new group generation is completed.