With　the　advantages　of　low　cost,　high　safety,　and　environmental　friendliness,　quasi-solid-state　zinc-ion　microbatteries　(ZIMBs)　have　received　widespread　attention　in　the　field　of　flexible　wearable　devices　and　on-chip　integratable　energy　storage.　However,　hysteresis　Zn-ion　transport　kinetics　and　inhomogeneous　growth　of　the　zinc　anode　result　in　the　poor　capacity　reversibility　and　cycling　stability.　Herein,　a　quasi-solid-state　planar　zinc-ion　cell　was　developed　by　employing　a　vertical　graphene　(VG)　film　as　an　effective　conductive　modification　layer　for　both　the　cathode　and　anode.　The　VG　distinctly　induces　uniform　Zn　deposition/stripping,　accelerates　the　charge　transport,　and　enhances　the　adhesion　between　the　active　materials　and　current　collectors.　As　a　result,　planar　Zn@VG//MnO2@VG　exhibits　a　high　areal　capacity　of　159　mu　Ah　cm-2,　a　remarkably　high　areal　energy/power　density　of　201.5　mu　Wh　cm-2/67.16　mu　W　cm-2,　and　a　high　capacity　retention　of　95.6%　at　a　bending　angle　of　180　degrees.　The　proposed　facile　strategy　for　electrode　modification　provides　a　new　insight　into　the　design　of　high-performance　flexible　and　planar　ZIMBs.