Electrically　bistable　devices　play　an　important　role　in　the　next　generation　of　information　materials.　Plasmonic　noble　metal　nanoparticles　(Au　and　Ag　NPs)　with　diameters　<6　nm　were　embedded　into　3-D　Cd-based　metal-organic　framework　(MOF)　matrixes　via　the　photoreduction　method　to　generate　Au　(Ag)　NPs@MOF　composites.　Electrical　bistability　measurements　on　the　sandwiched　ITO/NPs@MOF/silver　devices　indicate　that　two　switchable　conductivity　states　with　nonvolatile　memory　behaviors　can　be　observed.　The　ITO/Au　NP@2/Ag　device　with　neutral　matrix　possesses　the　highest　ON/OFF　current　ratio　of　104,　which　can　be　attributed　to　its　higher　electron　tunneling　efficiency　because　of　the　better　dispersity　of　Au　NPs　in　the　MOF　matrix.　A　mechanism　regarding　the　electric-field-induced　charge-transfer　process　assisted　by　conformational　change　in　the　active　layer　was　proposed.　©　2019　American　Chemical　Society.