A novel covalent organic framework (COF), TDMTA-TFP-COF, was synthesized through the condensation of a triazine-based triamine with triformyl phloroglucinol for supercapacitor electrode applications. It demonstrated remarkable specific capacitance, energy density, and power density in both three-electrode and symmetric supercapacitor configurations. This study highlights the potential of TDMTA-TFP-COF as a promising electrode material for energy storage applications.