The invention discloses a mould-proof antibacterial braid processing method, which relates to the field of weaving. The production processing method comprises the following steps of: aerating 4.9 to 19.5 parts of water, 0.1 to 0.5 part of heterocycle derivate complex and 80 to 95 parts of spinning oil solution by using a pneumatic pump and stirring until the three materials are uniformly mixed; adsorbing the prepared water/heterocycle derivate complex/oil solution mixture on the surface of a fiber in an oil cooling process of a polypropylene fiber molding process, wherein most of water is volatilized because the surface temperature is about 100 to 180 DEG C which is relatively high when a polypropylene fiber is just molded; and performing warp dressing, buckle inserting and cloth weaving on the molded polypropylene fiber. By the method, the problem of mildewing of a braid product in the processes such as storage, marine transport and the like in the plum rain season can be solved on the basis of ensuring that production cost is nearly unchanged.