PROBLEM TO BE SOLVED: To provide an inexpensive work jig of an easy structure, capable of accurately and efficiently performing cut work of grafting plants. ! SOLUTION: A cut work jig 1 is unitedly formed by synthetic resin, and includes a general square and smooth upper surface 2 arranged upward in a use condition, an opposite lower surface 3 parallel thereto, and a circumferential surface 4 connecting the upper surface 2 and the lower surface 3. The upper surface 2 has two pairs of first/second and third/fourth opposite sides 5/6 and 7/8 opposed in parallel to each other, and includes a stem receiving groove 9 crossing at right angles between the first side 5 and the second side 6, a guide groove 10 of a cut blade C crossing at a prescribed angle 伪 to the stem receiving groove 9, and a positioning indication 12 set in a linear form, crossing at the right angle the stem receiving groove 9 on a position away by a prescribed distance from the crossing part 11. ! COPYRIGHT: (C)2014,JPO&INPIT