To provide a press-fitting tool for clock pole plates reducing man-hours, improving working efficiency, and stabilizing quality.

The press-fitting tool 2 for clock pole plates includes a table 4 supporting a bottom board 10, a die plate 6 set on the table 4 and placed under a battery holder 10b, and a punch 8 press-fitting pole plates 12, 14. The die plate 6 has slopes 6b, and lead wire mounting parts 12a, 14a of the pole plates 12, 14 projecting below the battery holder 10b anut on the slopes 6b. When the pole plates 12, 14 are pushed and pressed by the punch 8, the lead wire mounting parts 12a, 14a project below the battery holder 10b and are folded along the slopes 6b of the die plate 6. When the press-fitting tool 2 is used in this way, press-fitting and folding of pole plates can be carried out in one step.