The utility model relates to a but mechanical splice's fire -retardant aramid fiber conveyer belt belongs to rubber conveyer belt goods technical field, include the casing ply and fire -retardant rubberizing layer and the fire -retardant cover rubber layer that constitute by warp and weft, weft includes along a plurality of weft group that conveyer belt length direction set up, last weft and lower weft that weft group arranged by aliging in the vertical direction constitute, warp is bending structure, and warp slope run through in the last weft of same weft group with down between the weft, its one end department of one -level weft group in the front forms and bends, its other end after one -level weft group locate formation and bend, it is located the upper and lower surface department of weft group respectively to bend, warp and alternately interlocking of weft, and when preparation mechanical splice, can homodisperse weft atress, improve weft's the intensity of breaking, effectively improve mechanical splice strength retention, make to connect strength retention and be not less than 64%, realization aramid fiber conveyer belt thoughtlessly connects with whole core conveyer belt mutually.