Electrochemical　capacitors　(ECs)　with　high-rate　characteristics　demonstrate　great　promise　for　replacing　bulky　aluminum　electrolytic　capacitors　with　alternate　current　(AC)-filtering　functions.　Currently,　the　performance　of　AC-line　filtering　ECs　is　limited　by　the　vast　gap　between　the　ionic　transport　kinetics　and　capacity　density　of　electrode　materials.　Herein,　vertically　oriented　MXene　and　reduced　graphene　oxide　composite　(VMG)　electrodes　are　prepared　by　electrochemical　co-deposition　to　bridge　the　performance　gap　for　AC-line　filtering　ECs.　Benefiting　from　the　unique　pseudocapacitive　characteristic　and　vertically　interconnected　microstructure,　the　VMG-based　EC　exhibits　an　outstanding　areal　capacitance　of　1.14　mF　cm(-2)　with　a　phase　angle　of　-80　degrees　at　120　Hz.　Moreover,　by　utilizing　the　advantages　of　MXene　at　negative　potential,　an　asymmetric　pseudocapacitor　is　constructed　with　an　energy　density　up　to　805　mu　F　V-2　cm(-2)　at　120　Hz,　which　can　be　further　incorporated　in　portable　and　wearable　devices　with　excellent　environmental　ripple　filtering　capability　in　diverse　scenarios.