PROBLEM TO BE SOLVED: To provide a display panel for signboard capable of being made use of as a simple means without using such as power in order to display character information for visual recognition by workers in each stage and every observation point in a civil engineering work site.SOLUTION: A character display panel for a signboard is composed by: being formed by a substrate 2 including holes 3 formed in vertical and horizontal arrangements and dot pieces 4 attached in respective hole 3 of the substrate 2; having the dot pieces 4 have one surface of both surfaces of front and back be a dot character display surface 4a, be axially supported capable of revolving against the hole 3 around an axis which is in parallel with the substrate 2, and provided with a holding means for holding each dot piece 4 in an action orientation with a dot character display surface 4a positioned on a front surface 2a of the substrate 2 and an orientation for non-action with the dot character display surface 4a positioned on a
