To facilitate maintenance by stripping a strip sheet for the sheet member of a measuring plate sheet and sticking the measuring plate sheet to a measuring plate body while aligning using an alignment mark.

A part of the surface 4A-1 applied with adhesive of a measuring plate sheet 4A is exposed by turning down a stripping sheet 4D along folding perforations 4D-2 while grasping a folding part 4D-4 in the vicinity of a stripping cut. Two alignment marks on the measuring plate sheet member 4A are then aligned, respectively, with two alignment marks PM1 on the side face of a measuring plate body 4B. Subsequently, the surface 4A-1 applied with adhesive is entirely sticked on the measuring plate body 4B while grasping the stripping sheet 4D. Maintenance is facilitated by performing wheel alignment measurement thereby re-sticking a damaged measuring plate sheet 4A easily.