Abstract: An electropneumatic V-staple driving machine includes: a machine stand with a switching device on the upper side; a first pressure cylinder member matched with a linking-up mechanism disposed on top of the machine stand; a double positioning seat and a first support frame installed over the first pressure cylinder member; a pair of staple setting devices provided on top of the double positioning seat and operatively connected with the linking-up mechanism for arranging the V-staples therein; a pair of percussion members fixed on top of the linking-up mechanism in conjunction with the staple setting devices for punching the arranged V-staples into a wooden surface of a workpiece; a working table vertically mounted on top of the machine stand over the staple setting devices for holding a workpiece thereon; a pressure feed mechanism installed on a side wall of the working table and connected between the switching device and the first pressure cylinder mechanism; and a second cylinder member matched with a second