To provide a compact and easy-to-handle picture stud driver by combining a picture stud with a bar-like head part with a picture stud driver which drives a round of connected picture studs as well as a picture stud for the picture stud driver.

This picture stud 11 has a head part and a head part with a needle part extended like a bar, and plural pieces of the picture stud 11 are connected crosswise at the bar-like head part 12. This picture stud driver consists of a cylindrical main body into which plural pieces of the picture stud 11 with bar-like head parts connected widthwise are inserted in freely slidable manner, a driving guide 32 for driving individual studs 11 loaded on the tip of the cylindrical main body, a piston 32 for driving the picture stud 11 on the head part side of the driving guide 32, a lever 35 for driving the picture stud 11 which is installed at the rear part of the piston 34 and equipped with an automatic return means, a picture stud replenishing aperture provided on the rear end of the cylindrical main body, and a lid for opening the picture stud replenishing aperture.