PURPOSE: To prevent the slip on a step board or the like with paint only by coating a non-slip paint made by mixing particles in a paint of same quality to the paint film layer to be coated on the surface of a base member on the surface of the base member linearly or dottedly.

CONSTITUTION: Soft particles 3 such as urethan beads, urethan powders or the like are mixed in a paint of same quality to the paint film layer 2 to be coated on the surface of a base member 1. When hard particles are required, alumina powders, glass beads or the like are mixed. The non-slip paint 4 mixed with the particles 3 is coated on the surface of the base member 1 linearly or dottedly. Thereby a paint film layer with no exfoliation and of large non-slip effect can be obtained.