The invention relates to a continuous reversible precision sawing machine, comprising a saw cutting main machine, a roller way and a pressing roller group, wherein the saw cutting main machine comprises a gantry frame and a circular disc saw, and the circular disc saw is arranged on a cross beam guide rail of the gantry frame; the roller way is laid under the gantry frame and comprises a receiving roller way, a working roller way and a finished product discharging roller way, and the working roller way can rotate forward and reversely; and the pressing roller group is arranged on the working roller way and is used for pressing a plate on the working roller way in the process of saw cutting. The sawing machine adopts a pressing mode with the pressing roller group, respectively applies dynamic pressing to the plate in the whole process of saw cutting, can realize multi-pass and multi-mode high-accuracy saw cutting and improve metal yield when in saw cutting.