PROBLEM TO BE SOLVED: To provide a nylon cord (cord like cutting member) type rotating blade for a mower capable of further enhancing the cutting performance.SOLUTION: A rotating blade A for a mower includes: a holding member 100 attached to a rotating blade attachment shaft 14 of a mower B and rotated a cord like cutting members 40a and 41a in which a base end side is held by the holding member 100 and a leading end side is extended outward in a radial direction of the holding member 100. The cord like cutting members 40a and 41a are extended from a plurality of positions where a plurality of numbers thereof are different from each other in an axial direction of the rotating blade attachment shaft 14.COPYRIGHT: (C)2014,JPO&INPIT【課題】ナイロンコード(コード状切断部材)式の草刈り機用回転刃において、より切断能力を高めることをその主たる課題とする。【解決手段】草刈り機Bの回転刃取付け軸14に取付けられて回転させられる保持部材100と、保持部材100に基端側が保持され、先端側が保持部材100の半径方向外方に延出させられるコード状切断部材40a,41aと、を備えた草刈り機用回転刃Aであって、コード状切断部材40a,41aは、その複数本が回転刃取付け軸14の軸方向において互いに異なる複数の位置から延出させられている。【選択図】図2