 Amorphous CoOOH films were fabricated on hexagonal graphite substrates in 0.2 M CoSO4 at a constant anodic deposition potential of 1.60 V vs Ag/AgCl (3 M KCl) under different deposition temperatures, and their electrochemical behaviors in 1 M NaOH and 1 M NaCl were systematically studied. The results showed that the deposition temperature had a significant effect on the electrochemical behaviors of the CoOOH films. For the four CoOOH films prepared under different deposition temperatures, when tested either in 1 M NaOH or 1 M NaCl, their area specific capacitance (CA) and cycle stability increased monotonously, their mass specific capacitance (CM) first increased and then decreased, while their bulk resistance (Rbulk) and charge-transfer resistance (Rct) first decreased and then increased with increasing deposition temperature. In addition, the CoOOH films had high CM, good electrical conductivity, low faradic charge-transfer resistance, and low diffusive resistance. Among the four CoOOH films fabricated under different deposition temperatures, the film prepared under a deposition temperature of 45 °C (Sample 3) had the highest CM, the lowest Rbulk, the lowest Rct, and good rate capability which can be ascribed to its structure with nanoparticles and nodules on its surface as well as its appropriate thickness. As a result, the CoOOH  film fabricated by anodic deposition is a very promising electrochemical capacitor material for applications.