Provided is a method of multiple connection providing a service by a client, the method including: executing at least one application for providing a service; referring to a multiple connection history including information about the number of multiple connections and a size of a sub-segment; determining the number of multiple connections and the size of the sub-segment based on the referred-to multiple connection history; and requesting the multiple connections according to the determined number of multiple connections and the determined size of the sub-segment.