The asymmetric microsupercapacitors (MSCs) are appealing power sources for miniaturized electronic devices owing to their high capacitance and wider working voltage window. However, the sluggish ion diffusion and poor electron transport in pseudocapacitive electrodes result in confined electrochemical performance of devices. In this work, we propose the pillar array structure of electrodes via 3D printing V2O5 (VN) nanosheets and graphene composite inks to boost the electrochemical performance of asymmetric MSCs. The V2O5 (VN) nanosheets and graphene sandwich each other can deliver a high electrical conductivity. The pillar array structure of electrodes shortens ion diffusion pathway to endow the electrodes with fast kinetics. The asymmetric MSCs achieve an impressive energy density of 44.86 μWh cm−2 and power density of 1.78 mW cm−2, powering a pressure sensor for 20 000 s. This strategy developed here is very helpful to promote the practical applications of MSCs.