The subject innovation will aid a central plate body (2) form a working surface object to display a grid 21 to provide for to facilitate the high-speed cutting jig avoid cutting the water-length set to be on according to the high-speed cutting machine used to for the , wherein the upper surface of the plate body (2) being vertically fixed in the lateral direction along the length of the plate body (2) the extension of one end is the bottom surface of the ㄱhyeong anchorage and 31, a guide member (3) forming the said plate body (2) from above the first receiving port 4 and a second support which is fixed to maintain the horizontal port 5 and the guide member 3 which is sapji a high speed cutter in order to maintain horizontally said plate body (2) but fitted to form a fitting groove 61 to be moved freely in a to install the locking latch (62) for holding the pause state is screwed to the front is moved to form a contact portion 63 that contacts the end avoid cutting water it comprises a member (6) A jig for high-speed cutting machine, characterized in being provided to the auxiliary device for high speed cutting can be made a large amount of processing becomes faster cutting of the object cutting.