The present invention is a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C), at least one vulcanization accelerator (D) selected from guanidines, sulfenamides and thiazoles, and an organic acid compound (E), wherein the rubber composition is kneaded in plural stages, the rubber component (A), all or a part of the inorganic filler (B), all or a part of the silane coupling agent (C), the vulcanization accelerator (D) and the organic acid compound (E) are kneaded in the first stage of kneading, and the number of molecules X of the organic acid compound (E) in the rubber composition in the first stage is in a relation of the following formula [1] relative to the number of molecules Y of the vulcanization accelerator (D) therein. The production method enables production of a rubber composition having a low-heat-generation property while successfully preventing the coupling function activity of the silane coupling agent from lowering. 0≦X≦1.5×Y  [1]