There are many kinds of rotation for table tennis.Different rotation make different motion state.It is active axon-action to improve teaching effect and sportsmen warfighting capabilities of table tennis.Taking topspin and backspin as example,the paper makes contrast analysis of the motion state: rotation ball flying in the sky,after touching table and level obstruction touching pat.The result shows that the camber of topspin flying pitch arc is large while the rotation ball is flying in the sky and it is submergence as it is flying.The camber of backspin flying pitch arc becomes small while it is float upward as it is flying.The speed of forward rotation becomes faster after the topspin touching table,the flying direction continues to submerge,the speed of backspin touching table becomes slow,its flying direction continue to float upward.After the level obstruction touching pat,the topspin is rebound up forward while the backspin is rebound downward.