Black soldier fly larvae (BSFL) as a bioconversion agent in converting organic waste into nutrient-rich biomass makes it a valuable alternative and sustainable protein source for animal feed formulation, addressing the high cost of traditional protein sources. Despite its nutritional benefits, the halal status of animals fed with BSFL is primarily concerned due to the impurity of larvae consumption. This study discusses the halal implications of feeding livestock with BSFL according to the Islamic jurisprudence. Findings suggest that animals predominantly fed with BSFL could be classified as al-Jallalah as feed of these animals are filth, requiring a quarantine process to eliminate any unpleasant effects on the animal’s meat or milk. If these effects are removed, the animals are permissible for consumption. The study concludes that while BSFL consumption is forbidden for mankind, its use as animal feed is permissible under the Islamic law, with necessary precautions are taken to maintain the halal status of the animals.