To provide a surface finish method which enables the range worked with patterning to be designed easily and to be carried out efficiently with a satisfactory finish condition not depending on a grinding method by handyman's hands or machines, when making the concrete surface of exposed concrete or a precast product express the ballast of aggregate and attaching concave-convex patterns.

The surface finish method which makes the ballast of aggregate express and makes uneven patterns is characterized by comprising: a process which applies a concrete hardening delaying agent to the whole surface or selected portion of a concrete form inner surface; and a process which casts concrete and carries out the rinsing elimination of the concrete portion which is not cured since it touches a concrete hardening delaying agent after the formwork removal, when casting ready-mixed concrete and forming walls and ceilings.