This invention creates an improved structure of the mowing disc with easy replacement of the mowing rope. It is an improved design of the mowing disc structure that provides a lawn mower that can be easily assembled from the side of the mowing disc through the mowing blade rope. For the mowing disc used for assembling the knife rope, there is an evenly recessed insertion slot on the top surface or side of the assembled disc body, and the recessed groove bottom edge is provided with a nearly horizontal and oblique through hole. Extend to the edge of the side of the disc body, and the knife rope piece is inserted and protruded to the outside of the disc body for rotating mowing. The entire insertion hole is set on the ring edge of the assembly top surface of the mowing disc, so that the knife is used for mowing. The operation of wearing and replacing the ropes achieves the practical purpose of easy replacement and safety and convenience.本創作一種具簡便更換割草繩之割草盤改良結構，係一種提供割草機可以簡便由割草盤側邊穿置割草刀繩件組裝之割草盤結構改良設計，將割草機刀繩件組裝用的割草盤，於組裝之盤體頂面或側邊設留等分凹落的插合槽口，其凹落之槽底緣設留近乎水平斜向的穿置孔，延伸到盤體側面環緣，供刀繩件穿置凸伸到盤體的外側，做轉動割草用，整個穿置孔口設於割草盤的組裝頂面環緣，使割草用刀繩件的穿置換裝操作，達到簡便換裝且安全便利的實用目的。
