Introduction: This study evaluates the impact of a badminton racket on forward and backward propulsion in wheelchair badminton, aiming to discern if this impact varies between propulsion directions. Materials and Methods: Nineteen experienced wheelchair badminton players underwent propulsion tests with and without a badminton racket. Results: In forward propulsion, the badminton racket distinctly alters propulsion technique parameters depending on the propulsion direction. It increases sprint time by 4% to 5% and reduces mean, maximum, and peak velocities by 3% to 8% regardless of propulsion direction. Deceleration is also diminished by 9% to 11% with the racket in both directions, potentially decreasing overall performance. Notably, while the impact of the racket differs between propulsion directions, there is no significant difference in the effect between forward and backward propulsion. Conclusion: The use of a badminton racket influences propulsion technique parameters differently based on the propulsion direction and affects performance parameters such as velocity and deceleration consistently across both directions. However, the direction of propulsion does not amplify the racket's effect. These findings underscore the importance for wheelchair badminton players and coaches to consider equipment effects on performance in both forward and backward propulsion.