Disassembly process in reverse supply chain is one of crucial stage due to this process could change returned products into raw material that could be re-used on manufacturing process or sold to third party. This paper will be explained how aggregate planning is used to planned disassembly process. Aggregate planning is considered with an objective on how returned product is disassembled with manpower allocation to fulfilled demand of raw materials. Classical aggregate planning strategy was implemented either level or chase strategy. A case study in small medium enterprise that dealing with electronics device waste was observed. Phone and tablets as one of electronics device was considered as products to be examined. The disassembly process will be evaluated and some aggregate planning scenarios will be introduced to maximize disassembly units as well as minimize the disassembly process costs. The optimized scenarios where all returned product could be disassembled at minimum cost will be presented.