To provide a solid soap which has excellent effects on beauty and health and is obtained by treating a specific galenical having not been considered as an additive for the slid soap under such conditions that effects are maximally exhibited.

This method for producing the solid soap containing persimmon leaf powder is characterized by comprising process for cutting persimmon leaves, steaming the cut leaves, rolling the steamed leaves with a rolling machine, drying the rolled leaves with a drying machine, pulverizing the dried leaves and then adding the pulverized leaves to soap chips. The persimmon leaf powder is added in an intermediate process of the soap-producing processes. The persimmon leaf powder-containing soap is colored with a blackish brown color or yellow-green color and has an anti-bacterial property. When the soap is used, catechins contained in the persimmon leaves are eluted on the use of the soap, and the anti-bacterial properties of the catechins effectively act on the skins of person to exhibit a cosmetic effect.