A rose flower architectured nano-crystalline CoMoO4 (CMO) has been grown on nickel foam substrates using the hydrothermal method and has been studied regarding optical and supercapacitor properties. The XRD pattern displays a predominant (002) orientation corresponding to monoclinic CMO with a C2/m space group. The estimated average crystallite size is 35 nm. SEM analysis reveals that a perfect rose flower structure has been successfully obtained for CMO and that these rose petals facilitate an excellent surface area of 25.62 m2 g-1. TEM analysis infers that the rose petals formed as a 3D-architecture with nanoscale particles. The XPS study demonstrates 2p3/2 and 2p1/2 peaks for Co and 3d5/2 and 3d3/2 corresponding to Mo, with their corresponding binding energies signifying the formation of CMO. The optical band gap observed for the synthesized CMO is 3.16 eV. As a supercapacitor electrode the CMO delivered an excellent specific capacitance of 2650 F g-1 at 1 mA g-1 as well as retaining 96% capacitance after 5000 cycles. These findings conclude that the unique rose flower architectured CMO demonstrates versatile applications, particularly as a promising candidate for high performance next generation supercapacitors