Abstract: Preparation and mechanical behavior of artificial muscle based on pH sensitive polymer gels was discussed in this paper.The fine gel fiber which could be called to be an artificial muscle were prepared from commercially available poly (PAN) fibers by the annealing and saponification and a massive carboxyl group was contained.Finally we introduced a novel parallel mechanism that driven by artificial muscle,which has already constructed and experimented in our laboratory

Key words: artificial muscle, polymeric gel