The invention discloses a large-diameter diamond beaded rope which comprises a steel wire rope, a plurality of string beads, a plurality of annularannular spacer bushes and a plurality of springs, wherein the plurality of the string beads, the plurality of the annularannular spacer bushes and the plurality of the springs are arranged outside the steel wire rope in a sleeving manner; the plurality of the string beads and the plurality of the annularannular spacer bushes are alternately arranged one by one in the axial direction of the steel wire rope; the two ends of each annularannular spacer bush is connected to the two adjacent string beads in a sealing manner; the diameter of each string bead is 30 mm; and the plurality of the springs are inlaid between the corresponding annularannular spacer brushes. According to the large-diameter diamond beaded rope disclosed by the invention, the diameters of the string beads are the largest in comparison with those of string beads of beaded ropes at present; the large-diameter diamond beaded rope can be independently used or combined with diamond beaded ropes of other models for use as a super-power rope sawing machine (132KW), and carries out efficient large-block mining on a mine while reducing punched holes; and water is better prevented from entering the steel wire rope during working, damage to the steel wire rope is reduced, the service life of the diamond beaded rope is prolonged and the reliability of the diamond beaded rope is improved, so that economic benefits of stone development are improved.