As the agricultural biotechnology industry is thriving in Taiwan, an important issue for its promising future is the usage of right strategies to create competitive advantages and lead to successful operating. This study develops concept index via Porter's value chain (1985) and later uses fuzzy Delphi method and fuzzy analytical hierarchical process (FAHP) to derive key success factors (KSF) for competitive advantages in promotion of agricultural biotechnology industry in Taiwan. Development strategies are then formed based on our KSF. These strategies can provide Taiwanese government and businessmen a powerful instrument in decision making and raise the competitive advantages in related industries.