Sewing method and sewing device

In the first step, the needles (72a, 72b) penetrate into the object to be sewn (100) through reciprocating motion, and after the top ends of the needles (72a, 72b) penetrate through the object to be sewn (100), the needles (72a, 72b) are separated from the object to be sewn (100). At this time, the machine needles (72a, 72b) are in a relatively stopped state relative to the sewed object (100). In the second step, the machine needles (72a, 72b) are separated from the sewed object (100). At this time, the needles (72a, 72b) are moved relative to the object to be sewn (100) in the sewing direction (sewing line (L)). 在第1工序中，机针(72a、72b)通过往复动作刺入被缝制物(100)，在机针(72a、72b)的顶端贯穿被缝制物(100)之后从该被缝制物(100)脱离。此时，使机针(72a、72b)处于相对于被缝制物(100)相对停止的状态。在第2工序中，机针(72a、72b)从被缝制物(100)脱离。此时，使机针(72a、72b)相对于被缝制物(100)沿着缝制方向(缝制线(L))相对移动。