The　paper　discussed　3D　visualization　and　analysis　of　brain　tumor　based　on　magnetic　resonance　images.　In　this　study,　the　brain　tumor　was　automatically　identified　by　support　vector　machine　(SVM),　and　then　3D　visualization　model　of　brain　tumor　was　obtained　by　the　classic　mobile　cube　algorithm.　Furthermore,　associated　3D　model　parameters　were　extracted　based　upon　the　morphologic　analysis,　thus　providing　reliable　quantization　information　for　the　radiofrequency　ablation　operation　of　brain　tumor.　©　2011　IEEE.