The invention discloses a processing method for reducing glass fiber breakage. The processing method for reducing glass fiber breakage is characterized by comprising the following aspects: (1) melting, namely, putting a glass fiber material into a melting furnace, and after the glass fiber material is melt, rising temperature, and adding polyvinyl chloride resin, then adding titanium dioxide, sodium silicate and kaolin, and performing thermal insulation; (2) wiredrawing and cooling, namely, performing wiredrawing processing in a molten state of the mixture to obtain a glass fiber, and sprayinga treating agent on the glass fiber, and then performing cooling treatment on the glass fiber; (3) performing dipping treatment, namely, adding a dipping solution into a reaction kettle, and immersing the glass fiber into the dipping solution for dipping treatment; and (4) performing oxidation, namely, immersing the dipped glass fibers in a silicic acid solution for immersion, taking the immersedglass fiber out, then draining water, and putting the drained glass fiber into a reaction kettle, introducing ozone for oxidation, and using ultraviolet light for irradiation, so that a finished glass fiber is prepared.