The invention discloses a sucrose industrial waste processing method through ecological transformation of houseflies. The method comprises the steps of fly collection and clean feeding and domestication, bagasse conversion to adapt to induction and stabilization of flies, seed selection of cellulase high-expression flies, induction of cellulase and lipase double-high-expression flies, preprocessing of biotransformation of fly maggots of sucrose industrial waste, stabilization of industrial bagasse converted flies, and production of fly maggot industrial products. Compared with the prior art, the biotechnology is adopted for sucrose industrial waste ecological transformation function induction and screening, passage and engineering breeding of the houseflies, the mechanical disruption and microbial fermentation technology is combined, the modern engineering technology is adopted, the resource comprehensive treatment of the sucrose industrial waste taking the biological fermentation and insect metabolism conversion as the main is achieved, and the method has the advantages of being high in ecological degree, large in bioavailability, short in rotten cycle, high in product quality, high in additional value of resources, free of environmental pollution, scientific in ratio, high in fertilizer efficiency and the like.