Virtual　reality　technology　has　shown　potential　for　rehabilitation　training,　and　spatial　presence　and　flow　experience　have　emerged　as　two　important　factors　for　explaining　the　virtual　reality　experience.　We　designed　a　new　non-immersive　upper　limb　rehabilitation　training　system　to　analyze　the　effects　of　spatial　presence　and　flow　on　the　user　experience　in　virtual　reality　and　its　acceptance　of　technology　using　a　technology　acceptance　model.　This　study＇s　results　showed　that　spatial　presence　has　no　significant　effect　on　perceived　usefulness　(β　=　0.102,　p　=　0.062),　some　degree　of　positive　effect　on　perceived　ease　of　use　(β　=　0.197,　p　=　0.010),　and　a　significant　positive　effect　on　the　flow　experience　(β　=　0.535,　p　＜　0.001).　Flow　experience　influenced　attitude　and　behavioral　intention　at　different　levels　(β　=　0.144,　p　=　0.001;　β　=　0.372,　p　＜　0.001),　and　76.9%　and　78.2%　variance　were　observed　in　user　attitude　and　behavioral　intention,　respectively.　In　a　multi-group　analysis,　the　results　showed　that　females　were　more　susceptible　to　spatial　presence,　whereas　males＇　attitudes　toward　the　system　were　more　susceptible　to　the　flow　experience.　Good　spatial　presence　will　improve　flow　experience　and　positively　influence　the　continuous　use　of　rehabilitation　training.　©　2024　Elsevier　B.V.