[Objective]　To　implement　a　computer　aided　system　for　liver　hyperthermia　treatment　planning.　[Methods]　VC++　6.0　and　MITK(Medical　Imaging　ToolKit)　were　chosen　as　the　development　platform　for　a　good　efficiency　in　both　runtime　and　development　phases.　Based　on　these,　the　system　framework　was　designed.　By　Amira　and　ANSYS,　the　system　could　be　initially　implemented.　[Results]　The　designed　system　can　be　applied　for　liver　hyperthermia　treatment　planning,　and　was　expected　to　guide　the　process　of　clinical　operation　by　further　improvement.　[Conclusion]　The　system　can　offer　scientific　and　reliable　evidences　for　hyperthermia　treatment　planning,　and　it　can　make　hyperthermia　treatment　parameters　quantificational　and　treatment　process　settled.　All　of　these　can　reduce　the　dependent　degree　to　clinical　experience　for　doctors.