Van　der　Waals　CuInP2S6　(CIPS)　exhibits　interesting　functional　behaviors,　including　reversible　ferroelectric　polarization,　copper　ion　(Cu+)　migration　and　negative　capacitance　effect.　Besides,　CIPS　are　found　to　persist　in　both　major　out-of-plane　polarization　and　minor　in-plane　polarization.　In　this　work,　we　fabricate　two-terminal　CIPS　devices　based　on　Au/CIPS/Au　heterostructure　with　vertical　and　lateral　conduction　channels　respectively.　The　vertical　device　exhibits　bipolar　switching　characteristic,　while　lateral　one　shows　only　unipolar　switching　along　with　rectification.　Moreover,　the　current　is　significantly　higher　in　vertical　case　than　that　in　lateral　case,　which　is　explained　by　carrier　transport　and　Cu+　migration　along　short　and　long　channels.　These　experimental　results　provide　physical　insight　into　CIPS　conductions　as　a　promising　candidate　for　future　information　storage　devices.　©　2024　IEEE.