Accurate tool setting device and tool setting method

The invention discloses an accurate tool setting device and a tool setting method. The accurate tool setting device comprises a base, a supporting assembly, a measuring assembly, a threaded push rod and a measuring rod; the supporting assembly comprises three supporting rods and a positioning plate; the three supporting rods are distributed on the base so that the three supporting rods can form atriangle; the positioning plate is fixed to the tops of the supporting rods; the measuring assembly comprises a moving plate, a dial indicator and a locking bolt; the movable plate is movably connected with movable ends at the upper parts of the supporting rods; the dial indicator is fixed in an dial indicator mounting hole; the locking bolt is matched with a locking hole; the threaded push rod ismatched with a push rod threaded hole in the middle of the positioning plate; and the measuring rod is connected with the base. With the method of the invention adopted, tool setting precision can beguaranteed; it is guarante