The invention relates to a system and a method for configuration of a combined network interface, applying to an electronic device with an operating system, and the electronic device is provided with a plurality of network interfaces. The method comprises the following steps: firstly collecting all network interfaces of the electronic device; selecting at least two network interfaces from all of the network interfaces as network interfaces to be combined for the subsequent combination; combining the selected network interfaces to be combined into a group to form a combined network interface; inputting the Internet protocol address of the combined network interface; generating a combined network configuration file according to the input Internet protocol address of the combined network interface; copying the generated combined network configuration file to a corresponding directory of the operating system to cover an original network configuration file under the directory; amending a system configuration file of the directory according to the combined network configuration file and storing the amended system configuration file; and finally performing network restarting by the electronic device according to the configuration file stored in the directory.