Aim\ To study the improvement of the design method about throttling bar of recoil brake of fixed guns. Methods\ According to the possibility
the paper presents a modified model of a braking recoil graph of fixed guns
and designs the throttling bar of a fixed gun based on it. Results\ The design results is closed to the optimum results. Conclusion\ This method will be of some referable values to the design about throttling bar of recoil brake of fixed guns.