Objective To explore whether expertise-novice effect on representational momentum exist among athletes in the university football and volleyball team and common college students.Methods We used implied motion paradigm in experiment 1 and smooth motion paradigm in experiment 2.Results There were no significant differences on representation momentum among football players,volleyball players and college students in the implied motion paradigm.When moving to the right at a high speed,college students' displacement was larger than athletes in smooth motion paradigm,but no significant differences were found between football and volleyball players in the displacement.Conclusion The expertise-novice effect on representational momentum has been found under the condition of high speed and moving right using smooth paradigm.There is no difference between football and volleyball on representational momentum.