This creation system provides a kind of mowing cable architecture,It, which is included at least, a wire body,The wire body system has a suitable length,Part of it system sets the rotatable mowing disk of one of one grass trimmer of what,Its another part system exposed what mowing disk,A cutting part is formed,The cutting part system includes at least at least three blade annular arrangement persons just like ridge cross-sectional shape for the cross section outer rim shape system of a ducted body or the cutting part； Further person,It is a ducted body that outside, which has the cutting part system of at least three blade annular arrangements,Then have effects that preferable resistance structure has again outside preferably cutting,And there is preferable service life.本創作係提供一種割草線結構，其至少包含有一線體，該線體係具有一適當長度，其一部分係設於一割草機之一可旋轉割草盤，其另一部分係外露於該割草盤，形成一切割部，該切割部係為一中空體或該切割部之橫斷面外緣形狀係至少包含至少三個有如山脊橫斷形狀之刀刃環狀排列者；進一步者，外側具有至少三個刀刃環狀排列之該切割部係為一中空體，則具有較佳抗力結構又具較佳切割功效外，而具有較佳使用壽命。
