An oral care composition containing a naturally occurring active ingredient is provided for the purpose of preventing or treating caries and bad breath. An oral care composition comprising erisilk powder. [Selection] Figure 1【課題】虫歯や口臭の予防又は治療を目的として、天然由来の活性成分を含む口腔ケア組成物を提供する。【解決手段】エリシルクの粉末を含む、口腔ケア組成物。【選択図】図1