Saw blade used for mowing

The utility model discloses a saw blade used for mowing which is installed on a lawn mower and comprises a metal substrate and blades, wherein the center of the metal substrate is provided with a center hole, the metal substrate takes the shape of a triangle, the three triangular blades uniformly distributed along the center hole are positioned at a triangular position of the metal substrate, a section of cutting edge is fixed at one side of each blade, and four equidistantly-spaced alloy tool bits are fixed at the other side of the blade. The saw blade has wide application range, not only can be used for mowing, but also can be used for cutting thicker plants such as shrubs and the like, and can conduct cutting under the harsh conditions such as grass contains impurities and the like. The saw blade can adopt different structural designs according to different objects to be cut, thus prolonging the service life of the saw blade.