Disclosed is a dissimilar content mixing cosmetic container, including a dual container body, an airless pump, and a push button, wherein, a dissimilar content receiving means, which raises a mixing member by a repulsive force of a resilient member caused by releasing of a catching boss of the mixing member, damages a sealing plate of a first content receiving means, presses contents2 received in the dissimilar content receiving means, and discharges the contents2 within contents1 received in the dual container body to be mixed, is provided, and contents3 are discharged by a push operation of the airless pump.