Provided are a system and a method that automatically produce natural locomotion animation without an applicable discontinuity portion with respect to various moving distance and timing by using motion capture data. The system includes a motion capture data storage, a simulation calculator, and an animation calculator. The method includes defining a speed calculated in the moving motion capture data as a maximum moving speed of a simulation in order to calculate an entire moving distance, a stopped time when starting and arriving, and a stopped time before starting and after arriving regarding to respective characters; extracting a portion of the arriving motion capture data to be appropriate for the entire moving distance in order to produce the locomotion animation when the entire moving distance is less than a moving distance of the arriving motion capture data; and satisfying an entire time corresponding to an entire motion of animation.