As　the　number　of　handicapped　people　increases　worldwide,　electric　wheelchairs　are　becoming　the　solution　to　enable　a　higher　degree　of　independence　for　wheelchair　users.　Many　researchers　pay　attention　to　how　to　solve　the　problems　in　daily　life　for　the　wheelchair　users,　rarely　care　for　their　physical　exercises.　In　Paralympics,　nearly　all　the　athletes　participate　in　sport　events　with　the　usual　wheelchairs　or　electric　wheelchairs　which　it　is　not　suitable　for　sports　like　tennis.　In　this　paper,　we　present　a　new　prototype　of　an　intelligent　tennis　wheelchair　which　can　help　people　move　more　flexibly　in　the　tennis　game.　The　novel　intelligent　tennis　wheelchair　with　four　omnidirectional　wheels　installed　on　the　bottom　can　move　in　all　directions.　The　centre　of　gravity　can　be　computed　by　calculating　the　values　of　four　pressure　sensors　under　the　wheelchair　seat,　thus　the　orientation　and　velocity　of　wheelchair　can　be　controlled　by　using　human　body　motion.　A　lot　of　simulations　have　been　done　on　the　Webots　platform.　This　paper　presents　the　architecture　of　the　developed　system　and　gives　some　simulation　results.　©　2011　IEEE.