To provide a skin detergent composition excellent in foaming, a foam quality (creaminess) and the amount of foam, having no slimy feeling during rinsing, excellent in moist feeling after being dried with a towel, and further excellent in stability with time.

Following components (A)-(C) are contained: (A) one or more kinds of surfactants selected from an anionic surfactant, an ampholyte surfactant and a nonionic surfactant, (B) polyglutamic acid and (C) hydroxypropyl starch phosphate.