The invention discloses a color master batch dicing device and a manufacturing process thereof, and belongs to the technical field of color master batch production. The color master batch dicing device comprises a shell, a driving motor is fixedly installed on the outer surface of the front end of the shell, a movable column is arranged in the shell, a plurality of dicing cutters are arranged on the outer side face of the movable column, a plurality of storage grooves are formed in the two ends of the movable column correspondingly, mounting blocks are fixed to the two ends of the dicing cutters correspondingly, the mounting blocks are fixedly mounted in the storage grooves through mounting bolts, a second fixing shaft and a third fixing shaft are fixed to the two ends of the movable column correspondingly, a side plate is fixedly mounted on the left side of the shell, and a supporting plate is fixedly mounted on the upper surface of the side plate. According to the color master batchdicing device and the manufacturing process thereof, the storage grooves, the mounting blocks and the mounting bolts are arranged, and the dicing cutters are fixedly mounted on the movable column, sothat the dicing cutters can be independently replaced, the workload during replacement is reduced, the actual replacement cost is also reduced, and the practicability is high.