March-past performances are presented in most major ceremonies and competitions which represent the strength of the team and the symbol of their spirit. The study proposes the method of using A* pathfinding algorithm to set out a target which combines with the character animation and spawn point to control avatar. Meanwhile, the configuration of the trigger is there to set off the transformation of the march and the avatar is therefore made to become various character animations. Thus, an avatar march-past performance system is established. The utilization of A* pathfinding algorithm to accomplish a 3D virtual march system is able to simulate the effect of real march performances and the presentation of character animations and also the tool for rehearsals. The application of changeable character animations can be used in producing character, planning for character actions in 3D games and so on. Furthermore, the planning for walking path can be applied in development of 3D guide system and VR show rehearsals. As a result, the combination of the changeable march transformation and avatar character animation presents the power and beauty of the 3D virtual team.