The present invention relates to an oral medicinal composition comprising (a) a medical agent that is low in solubility in both water and oils but is soluble in a polyethylene glycol, (b) a polyethylene glycol that is solid at temperatures of 40°C or lower, and (c) an oily or aqueous auxiliary agent. The oral medicinal composition cannot provide any stimulus or unpleasant feeling during being dissolved in the mouth, and is improved in the solubility of the medicinal agent in the mouth, and is also improved in the absorbability of the medicinal agent in the mouth.