Micro　targeted　therapy　for　cancer　has　become　a　hot　topic　in　recent　years　because　of　its　advantages　of　little　damage　to　the　human　body　and　early　treatment　of　cancer.　Therefore,　accurate,　rapid　treatment　methods　and　biofriendly　exogenous　substances　are　extremely　important.　CdTeSe/ZnS　core-shell　quantum　dots　(QDs)　have　great　potential　in　biomedical　imaging　and　biological　ablation　therapy　due　to　their　advantages　of　near-infrared　radiation,　aqueous　synthesis　and　bio-friendliness.　In　this　paper,　CdTeSe/ZnS　core-shell　QDs　were　prepared　by　aqueous　synthesis,　and　have　near　infrared　output　and　excellent　photothermal　properties.　A　blue　laser　was　used　as　the　irradiation　source　and　QD　fluorescence　imaging　can　accurately　calibrate　the　treatment　area.　Under　the　photothermal　and　photodynamic　effects　of　QDs,　apoptosis　of　hepatoma　cells　Huh7　was　induced,　which　provides　a　new　micro-nano　technology　and　biofriendly　exogenous　substances　for　cancer　treatment.