An　integrated　manufacturing　of　continuous　functionally　graded　materials-structures　based　on　multi-material　3D　printing　and　constrained　sacrificial　layer　was　proposed　to　solve　the　limitations　of　the　existing　functionally　graded　material　preparation　methods,　such　as　difficult　to　control　the　shape　of　low-viscosity　liquids　accurately,　poor　interlayer　bonding　strength,　and　simple　forming　structure.　This　technology　is　capable　of　realizing　the　brand-new　preparation　of　polymer-based　continuous　functionally　graded　materials.　Through　theoretical　analysis　and　experimental　investigation,　the　influence　law　of　main　process　parameters　including　extrusion　speed,　printing　speed　and　line　spacing,　on　the　forming　quality　and　performance　of　printing　continuous　functionally　graded　materials　are　revealed.　Graphene/UV　curable　resin　dielectric　functionally　graded　material　(d-FGM)　were　prepared　by　using　lab　self-developed　device,　and　realizing　the　integrated　manufacturing　of　polymer-based　continuous　functionally　graded　insulators.　Compared　with　the　homogeneous　UV　curable　resin,　the　dielectric　constant　has　doubled,　the　resistivity　has　been　reduced　by　93.3%,　and　the　amplitude　of　the　creeping　electric　field　strength　has　increased　by　more　than　14%.　Besides,　the　rigidity　of　the　Al2O3　side　with　40%　content　has　doubled　than　a　single　polydimethylsiloxane　(PDMS)　material.　With　the　features　of　realizing　the　continuous　gradient　distribution　of　the　Al2O3.　The　3D　printing　process　provides　a　low-cost　and　high-efficiency　solution　for　the　preparation　of　polymer-based　continuous　functionally　graded　materials.　Copyright　©2022　Acta　Materiae　Compositae　Sinica.　All　rights　reserved.