In　this　article,　we　aim　to　present　a　potential　control　method　for　managing　the　turn-to-turn　contact　resistivity　of　REBCO　coils　through　surface　coating.　The　current　metal　insulation　(MI)　process　has　been　observed　to　significantly　elevate　the　turn-to-turn　contact　resistivity　in　short　samples.　However,　the　results　from　coil　sudden　discharge　experiments　do　not　align　with　the　data　obtained　from　short　samples.　Furthermore,　the　substantial　variation　in　contact　resistivity　among　different　coils　employing　the　same　fabrication　process　suggests　that　the　MI　method　may　not　be　the　most　optimized　approach.　Consequently,　we　explored　various　surface　coatings,　including　stainless　steel,　copper,　and　InSn　solder.　Through　a　systematic　investigation　of　different　combinations　of　surface　coatings　on　contact　resistivity,　we　discovered　that　the　＂Mikic　elastic　correlation＂　could　effectively　describe　the　turn-to-turn　contact　resistivity　of　the　REBCO　coil.　The　key　to　controlling　and　adjusting　the　contact　resistivity　appears　to　be　utilizing　a　harder,　low-conductance,　and　heterogeneous　interface.