The invention provides a multi-core cable stripping pre-tinning cutting machine, comprising a cabinet power distribution cabinet, a wire-through platform, a moving track mechanism, a wire clamping fixture, an optical fiber induction position, a round wire stripping mechanism, a round wire positioning mechanism, a flat wire stripping mechanism, a flat wire positioning mechanism, a soldering flux circulation and tin-feeding mechanism, a soldering flux soaking wire pressing mechanism, a soldering flux soaking pre-tinning lifting mechanism, a pre-tinning wire pressing mechanism, a core wire proportional cutting mechanism, a soldering flux storage bottle, an operation control panel, a wire clamping fixture backward mechanism, and a wire clamping fixture tray. The multi-core cable stripping pre-tinning cutting machine integrates core wire automatic transmission, automatic positioning, automatic stripping, automatic soldering flux soaking, automatic tin scraping, automatic tin blowing, automatic blanking, and is intelligentized in the whole process, and is high in automatic operation degree. The machine is suitable for stripping and pre-tinning operation of round wires and flat wires in various different models and specifications. The machine is high in positioning precision, good in wire pressing effect, high in operation efficiency, high in capacity, and low in cost, and satisfies requirements of batch production of industrialization development.