Heterostructured　(HS)　material　with　extraordinary　mechanical　properties　has　been　regarded　as　one　of　the　most　promising　structural　materials.　Here,　we　reported　a　new　strategy　for　preparing　heterostructured　pure　titanium　laminates　that　possess　a　good　combination　of　strength　and　ductility　by　combining　gradient　structure　(GS)　and　heterogeneous　lamella　structure　(HLS).　The　deformation　characteristic　versus　microstructure　evolution　of　GS/HLS　titanium　laminates,　namely　the　strain　partitions　between　different-sized　grains　(480-25　mu　m)　was　visualized　using　a　scanning　electron　microscope　(SEM)　equipped　with　electron　backscattered　diffraction　(EBSD)　mode　combined　with　the　digital　image　correlation　(SEM-DIC)　with　an　ultrahigh　spatial　resolution　for　the　first　time.　As　a　result,　the　hetero-deformation　of　unique　GS/HLS　structure　by　the　characteristic　of　strain　partitions　could　be　accurately　captured.　While　the　hetero-deformation　could　result　in　the　hetero-deformation　induced　(HDI)　stress　strengthening　and　HDI　hardening,　which　were　regarded　as　the　key　reason　that　the　resulting　GS/HLS　Ti　laminates　showed　a　superior　combination　of　strength　and　ductility.　This　could　promote　a　more　in-depth　understanding　of　the　strengthening-toughening　mechanism　of　hetero-structured　material.　(C)　2022　Published　by　Elsevier　Ltd　on　behalf　of　The　editorial　office　of　Journal　of　Materials　Science　&　Technology.