Cutting device with precise limiting function

The utility model discloses a cut-off device with a precise limiting function. The cut-off device comprises a workbench, a cutting mechanism moving on the workbench and a driving mechanism used for driving the cutting mechanism to move. The cut-off device is characterized by comprising a pressing mechanism and a limiting mechanism which are connected to the workbench; the pressing mechanism is used for abutting the pipe against the workbench. The limiting mechanism comprises a transverse limiting assembly and a longitudinal limiting assembly, the transverse limiting assembly is used for limiting movement of the pipe fitting in the moving direction of the cutting mechanism, and the longitudinal limiting assembly is used for limiting movement of the pipe fitting in the direction perpendicular to the moving direction of the cutting mechanism. The pipe cutting device has the effect of improving the production safety, the risk that the human hand is cut can be reduced, meanwhile, shaking of the pipe in the cutting