A method for sharing a console variable setting of an application and the electronic device and system is provided. The sharing method includes: capturing a display frame of a first electronic device to obtain a set coding image by a second electronic device; transforming the set coding image into a meta file by the second electronic device, wherein the meta file comprises a set of setting parameters for a plurality of first setting options of a first application of the first electronic device; and setting a plurality of second setting options of a second application of the second electronic device as the set of setting parameters for the plurality of first setting options according to the meta file, wherein the second application is the same as the first application.