the knitting fabric around the buttonhole 2 are repeated for a necessary number of courses the procedure to form the buttonhole 2 in the embodiment 2 has an advantage that it needs a less number of knitting courses than that in the embodiment 1 in a knitting method for a buttonhole in a knit product in the embodiment 3 the bottom peripheral portion 2a of the buttonhole 2 is formed in the same way as the embodiment 1 but on and after fig3 14 the embodiment 2 employs a knitting procedure that is different from that in the embodiment 1 for knitting the top peripheral portion 2b of the buttonhole 2 as described below after the bottom peripheral portion 2a of the buttonhole 2 is formed on the front knitting needles h to e that is after a knitting course in fig5 1 a yarn is supplied in a zigzag pattern between the front knitting needles d to i and the rear knitting needles d to h as shown in fig5 2 in fig5 3 a yarn tucked on the front knitting needle c is supplied to the front knitting needles d to h to form loops on them further in fig5 4 a yarn is supplied to the rear knitting needles d to h to form loops and the yarn is also tucked on the front knitting needle i in fig5 5 the loops held on the front knitting needles d to h are made to be held also on the rear knitting needles d to h furthermore a yarn is supplied to the front knitting needles a to c to form loops on them in fig5 6 and a yarn is supplied to the rear knitting needles a to.