[Problem] The purpose of the present invention is to provide a high-quality solid oral composition which is easy to handle and with which moisture absorptivity of hainosankyuto extract is inhibited. [Solution] Provided is a solid oral composition that contains hainosankyuto extract and a water-soluble cellulose derivative, wherein the blending ratio (dry weight ratio) of hainosankyuto extract and the water-soluble cellulose derivative is 1 to 20 parts by weight of water-soluble cellulose derivative per 100 parts by weight of hainosankyuto extract in terms of hainosankyuto dry extract content.