Surigao del Sur State University has been utilizing the Bioreactor-Vermi Technology through accelerated composting processes in response to the increasing concern about the amount and management of Municipal Solid Wastes (MSW) and sustainable farming in the municipalities of Tagbina and Barobo, Surigao del Sur, Philippines. The major focus was to evaluate the potential of Bioreactor-Vermi Technology to reduce municipal solid wastes and the potential of the organic fertilizer produced from these wastes for sustainable farming. A descriptive research design was utilized in this study employing multiple data collection techniques which include characterization of compostable solid wastes, their sources, amount of wastes utilized for composting and the amount and quality of organic fertilizer produced. Results revealed that using bioreactor-vermi technology; the biodegradable MSW in the two municipalities is reduced to 6.68% producing 300 tons of organic fertilizers in five years operation utilized by 200 farmers for the cultivation of various crops within and outside the two municipalities. Organic fertilizer produced is in acceptable level for sustainable farming. As the major composition of waste is organic, waste treatment options like bioreactor-vermi composting is effective in reducing municipal solid wastes and producing organic fertilizer for sustainable farming not only in the Philippines but all over the world.