To simplify a device constitution by attaching cursors.

This job instruction card holder is provided with a steel board 2 for mounting a job instruction card, job instruction card clamping means 4A and 4B constituted by including left-side and upper-side edge parts respectively, and cursors 6A and 6B. The clamping means 4A and 4B include pushing members abutting on the left-side and upper-side edge parts of the board 2 by energizing forces respectively, and the pushing members have sliding guide parts 4AX and 4BX extending along the board edges respectively. The cursors 6A and 6B have guide edges 6AX and 6BX abutting on the sliding guide parts 4AX and 4BX, instruction parts 6A1 and 6B1, and rubber sheet magnets 6A2 and 6B2 attached thereto respectively, extend in the direction orthogonally crossing with the sliding guide parts and are movable in parallel to the sliding guide parts 4AX and 4BX while retaining the abutment state with the guide edges 6AX and 6BX and the sliding guide parts 4AX and 4BX.