The purpose of the study is to explore the differences of baseball hitters' hitting points when they wave sticks. Six baseball team members were selected as research participants for analyses. Two Sonly digital cameras were adopted to videotape different hitting points of waving actions. Kwon3D was used to analyze and obtain sport parameters. Results are as follows:1. In the variable, the angle of elbow joint in leading hand, the comparison between center straight and outside corner straight as well as inside corner straight and outside corner straight reached the significant level. In the variable, the angle of elbow joint in trail hand, the comparison between center straight and outside corner straight as well as inside corner straight and outside corner straight reached the significant level. In terms of the variable, the included angle formed by forearm and bat in trail hand, the waving actions in three hitting points reach the significant level.2. After the analyses of One-Way ANOVA, the difference of hitting points in waving speed reached the significant level. Post Hoc Analysis indicated that outside corner straight and inside corner straight reached the significant level.3. No matter where the hitting point is, the speed and distance of the center of gravity will not significantly change. Thus, the hitting force which was driven from bodies is one of the unnegligible factors in hitting processes.4. Generally speaking, different hitting points will cause different angles of elbow joints, the included angle formed by forearm and bat in trail hand and bat velocity. Hence, the actions of hands' joints are the key factor of waving action difference of different hitting points.