The invention discloses a cutting machine for rubber hoses with fiber woven layers. The cutting machine comprises a cylinder, a cylinder fixing seat, a support column, guide columns, a guide slider, a cutter saddle, a cutter, a hose support seat, a hose clamping device, a base, a measuring scale mounting frame, a measuring scale and a slider check block. The cutter is mounted on the cutter saddle via screws, the upper end of the cutter saddle is mounted on a piston of the cylinder, a side surface of the cutter saddle is welded at one end of the guide slider, the other end of the guide slider vertically moves between the two guide columns, the hoses with different sizes can be mounted in a V-shaped groove of the hose support seat, the measuring scale is used for measuring specified cut lengths of the hoses, and the hose clamping device is used for fixing the hoses. The cutter is driven by the cylinder to move downwardly so as to cut the hoses. Compared with a cutting machine for implementing the traditional cutting method, the cutting machine has the advantages of simple structure, convenience in operation and high practicality, machining efficiency, notch quality and length consistency.