The invention discloses a cutting machine with high accuracy. The cutting machine comprises a base. A controller is mounted on the front surface of the base, a worktable and a sleeve are sequentially arranged on the top of the base from the front to the back, a supporting column is arranged on the top of the sleeve, the bottom of the supporting column penetrates the sleeve and extends into the sleeve, a support arm is fixedly connected with the top of the supporting column, two supporting rods are fixedly connected with the bottom of the support arm, a cutting blade is arranged between the supporting rods, a rotary rod is penetratingly arranged on the cutting blade, two ends of the rotary rod penetrate the supporting rods and are rotationally with bearings, and each bearing is arranged on a side of the inner wall of the corresponding supporting rod. The cutting machine with the high accuracy has the advantages that the cutting machine is provided with a gear on a second motor and a rack which meshes with the gear, and accordingly the worktable can be driven to stably move; manual operation can be replaced, accordingly, the object cutting accuracy can be guaranteed, the work efficiency can be improved, and the production cost can be reduced.