The present invention relates to a natural plant mixed extract capable of regulating skin temperature, and a cosmetic composition comprising the same, wherein the natural plant mixed extract is prepared from a mixture of aloe, Laminaria japonica, Dioscorea japonica, Ulmus davidiana var. japonica, and Viola mandshurica, and the cosmetic composition comprising the natural plant mixed extract is coated on skin to prevent skin temperature from rising due to UV rays, infrared rays and the like, thereby preventing heat-induced skin aging. The natural plant mixed extract prepared from a mixture of aloe, Laminaria japonica, Dioscorea japonica, Ulmus davidiana var. japonica, and Viola mandshurica is contained in the cosmetic composition, wherein the natural plant mixed extract and the cosmetic composition comprising the natural plant mixed extract have superior moisturizing effect, antioxidant effect (NO scavenging) and cellular proliferation effect, show no dermal toxicity, can be applied on sensitive skin, and does not cause side effects on the skin even when used for a long time. The present invention relates to a cosmetic composition for inhibiting heat-induced skin aging comprising a natural plant mixed extract capable of regulating skin temperature. The present invention provides a natural plant mixed extract capable of regulating skin temperature, prepared from a mixture of aloe, Laminaria japonica, Dioscorea japonica, Ulmus davidiana var. japonica, and Viola mandshurica and a cosmetic composition for inhibiting heat-induced skin aging comprising the natural plant mixed extract capable of regulating skin temperature. Once the aloe, Laminaria japonica, Dioscorea japonica, Ulmus davidiana var. japonica, and Viola mandshurica are mixed together, extraction is performed preferably by using an extraction solvent selected from the group consisting of water, anhydrous or hydrous C1-C4 lower alcohol, acetone, ethyl acetate, butyl acetate, and 1,3-butylene glycol.COPYRIGHT KIP