The solid soap composition according to the present invention comprises (A) a soap material and (B) a microemulsion that contains the following components (b1)-(b3): (b1) at least one surfactant selected from the group consisting of nonionic surfactants and anionic surfactants, (b2) at least one kind of an oily component, and (b3) water.本發明之固體肥皂組成物係含有(A)肥皂基質、及、(B)含有以下成分(b1)~(b3)的微乳膠：(b1)選自由非離子界面活性劑及陰離子界面活性劑所成群組的至少1種界面活性劑、(b2)至少1種油性成分及(b3)水。
