Abstract: Preface: On February 11, 2026, the maximum dynamic pressure escape flight test of the Mengzhou manned spacecraft was successfully completed, marking a major breakthrough about the new escape solid rocket motor technology in China. The test fully verified the two-stage thrust working mode of the escape main motor, the integrated separation and side-push capability of the escape separation motor, and the lateral omnidirectional variable thrust capability of the escape attitude control motor. This indicate that a series of technical difficulties, such as the elbow pipe ablation issue, the integrated thrust design issue of separation and side push, and the omnidirectional variable thrust design issue, were successfully overcome, laying a solid foundation for the smooth progress of the China Manned Lunar Exploration Program.