The　incorporation　of　metal　nanoparticles　(NPs)　into　the　block　copolymer　(BCP)　micelles　has　received　considerable　attention　due　to　many　potential　applications　as　well　as　the　variability　in　structures.　One　of　the　unsolved　problems　in　this　field　is　the　incorporation　mechanism　of　NPs　into　the　desired　position　of　controllable　BCP　micelles.　In　this　paper,　the　procedure　of　polystyrene-block-poly(acrylic　acid)　(PS-b-PAA)　deposition　on　Au　NP　surface　has　been　captured　by　using　an　in　situ　graphene　liquid　cell.　Attachment　and　direct　deposition　are　the　two　pathways　of　polymer　deposition　that　are　decided　by　the　surface　chemistry　of　Au　NPs.　Additionally,　three-dimensional　electron　tomography　revealed　that　the　NP　morphology　affects　the　volume　and　surface　area　of　Au@PS-b-PAA　core-shell　NPs.　This　study　offers　new　insights　into　polymer　encapsulation　and　polymer　imaging,　which　would　benefit　the　design　of　core-shell　NPs　as　well　as　their　relative　applications.　©　2024　Elsevier　Ltd