Human motion generation is one of the important issues in computer animation. To generate a realistic human motion, various information of body joints are needed, and dynamics is the solution to this. However, formalizing complex human motions and solving the equations are computationally expensive. To find an interactive and realistic human motion, we made use of dynamic properties which allow us to use several key human motion factors. In this paper, we propose an aggregation method using fuzzy logic to merge these human factors. We suggested and implemented an animation system model based on this method, and numerous experimental results showed that the proposed method generates a fast and realistic human motion.