To provide a disposable diaper manufactured of a naturally degradable material returned to the earth.

This disposable diaper is provided with a diaper body 2 formed of a first natural material and having a plurality of passage holes 6 on the surface of a part for receiving feces and urine, a liquid absorbing means 3 formed of a second natural material and disposed in a space connected to the passage holes 6, and a passage hole closing film 7 formed of a water-soluble third natural material and closing the passage holes 6, wherein the part of the diaper body 2 for receiving the feces and urine is formed with recessed/projecting parts 8 and treated with water-repellent finish. The space for disposing the liquid absorbing means has deodorant.