Porous　Ti　not　only　inherits　the　physical　and　chemical　properties　of　titanium　alloy,　such　as　higher　special　stiffness,　special　strength,　excellent　corrosion　resistance　and　biocompatibility,　but　also　its　unique　pore　structure　gives　it　the　characteristic　of　ultra-low　density　and　large　surface　area.　It　is　an　alternative　material　for　human　body　with　structural　and　functional　integration.　It　has　been　widely　used　in　the　field　of　clinical　medicien　in　recent　years.　Many　research　and　applications　show　that　the　properties　and　functions　of　porous　Ti　strongly　depend　on　the　pore　structure　of　porous　Ti　prepared　by　different　methods.　Surface　activation　technology　can　significantly　improve　the　surface　activity　of　porous　Ti　and　shorten　the　healing　period　after　implantation.　In　this　paper　the　common　preparation　methods　of　porous　Ti　were　introduced　based　on　the　structure　and　properties　of　porous　Ti.　The　surface　modification,　biological　activity,　osteoinductive　properties　of　porous　Ti　and　their　domestic　research　status　were　summrized.　The　development　of　biomedical　porous　Ti　and　titanium　alloys　was　prospected.