Abstract: The environment of a rocket sample launching test site is complex, which requires that the launcher can be disassembled quickly, transported manually and assembled quickly. Therefore, a detachable 8-mount launcher is designed. The pitching angle of the launcher can be adjusted manually to meet the test requirements of different shooting angles. The strength of pitch angle adjusting screw is calculated and checked, and the key components of the launcher are analyzed by finite element method. The designed detachable launcher meets the needs of rocket sample launching test, and improves the efficiency of launch test.