In aquaculture, providing economical, nutritious, and environmentally friendly feed has always been one of the biggest challenges. Earthworms, with their high protein content featuring balanced amino acids, as well as suitable fats, minerals, and vitamins, are an optimal option for replacing expensive and scarce protein sources such as fish meal currently in use. Cultivating these worms is simple and low-cost, and given their wide tolerance range of environmental factors, their cultivation is feasible in many areas without the need for special facilities. Another advantage of earthworms is that they are a byproduct of producing organic fertilizer (vermicompost). Vermicompost is made from animal manure or household and agricultural waste, making its production environmentally friendly. Additionally, organic fertilizer can be used to fertilize earthen ponds. Processing and utilizing earthworms in aquaculture feed has been a constraint that has hindered their commercial use. This article presents the nutritional value of earthworms, as well as methods of processing and utilizing them in aquaculture diets.