LiMnxFe1-xPO4(0.5≤x≤1)　has　been　regarded　as　a　promising　cathode　material　for　lithium-ion　batteries　due　to　its　competitive　energy　density　and　excellent　thermal　stability,　yet　its　rate　capability　and　capacity　retention　during　long　cycles　remain　to　be　further　improved.　Herein,　a　hybrid　layer　composed　of　Li3VO4　(LVO)　and　carbon　was　designed　and　successfully　coated　on　LiMn0.5Fe0.5PO4　(LMFP)　nanorods　via　a　wet　ball-milling　method　combined　with　the　heat　treatment.　This　layer　performs　as　not　only　a　protector　to　maintain　the　structural　integrity　of　LMFP　but　also　a　conductor　to　induce　the　fast　transport　of　both　Li-ions　and　electrons.　LMFP　modified　with　the　hybrid　layer　of　carbon　and　3　wt%　LVO　(LMFP/C-3LVO)　exhibits　super　long　cycling　stability　over　1000　cycles　at　5　C,　with　considerable　capacity　retention　of　91.5%.　Even　at　a　high　rate　of　10　C,　LMFP/C-3LVO　can　also　deliver　a　substantial　discharge　capacity　of　125　mAh•g−1.　The　favorable　kinetics　of　the　modified　composite　were　confirmed　in　detail　by　EIS　and　GITT　measurement.　When　paired　with　the　modified　Li4Ti5O12/C　anode,　LMFP/C-3LVO　shows　a　stabilized　discharge　capacity　of　107　mAh•g−1　over　120　cycles　at　1　C.　Our　strategy　on　ionic/electronic　dual-conductive　hybrid　layer　provides　a　guideline　on　the　synthesis　and　modification　of　high-performance　cathode　materials.　©　2020