This paper aims to find out the critical factors of success in Ready-made Garment (RMG) industry of Bangladesh, especially from manufacturing engineering aspects. Basically, garment product must be competitive in terms of quality, cost and time, so the evaluation index system for the product strategic aspects has been constructed in this paper. Fuzzy analytical hierarchy process (FAHP) has been used to give evaluation to the product strategic aspects of ready-made garment enterprise of Bangladesh so that the managers can adopt the effective product strategies.