Conductive　rubber　is　a　kind　of　key　material　and　widely　used　in　flexible　electronics　for　its　high　elasticity　and　good　conductivity.　The　rearrangement　of　the　conductive　filler　may　lead　to　the　corresponding　resistance　change　when　the　conductive　rubber　experiences　loadings.　In　this　study,　the　conductive　rubber　was　prepared　by　filling　Ni　coated　carbon　fibers　(CF-Ni)　in　polydimethylsiloxane　(PDMS)　matrix　and　the　distribution　of　CF-Ni　was　observed.　The　static　distribution　of　CF-Ni　fiber　filling　in　conductive　rubber　was　observed　and　the　calculation　method　of　fiber　orientation　rate　was　constructed.　The　3D　printed　samples　were　synchronously　observed　when　the　fillings　were　redistributed　in　the　matrix　under　tensile　loading.　The　results　show　that　the　CF-Ni　fiber　deflection　along　the　direction　of　the　tensile　strain　and　the　maximum　deflection　angle　achieves　to　20°.　It　is　found　that　fiber　orientation　distribution　and　fiber　deflection　will　affect　the　electrical　properties　of　conductive　rubber　at　different　tensile　strain.　The　maximum　surface　resistance　variation　of　CF-Ni/PDMS　is　600%　with　60%　dependent　variable.　The　response　of　the　resistance　in　CF-Ni/PDMS　conductive　rubber　at　different　tensile　strain　builds　a　foundation　for　the　preparation　of　flexible　sensor.　©　2019,　Editorial　Office　of　Acta　Materiae　Compositae　Sinica.　All　right　reserved.