<p>This paper presents the results of a structural static test performed to evaluate the structural soundness of a composite oxidant propulsion tank for use in a space launch vehicle. In main text, the test equipment used in the structural static test is introduced and the test requirements that the composite oxidant propulsion tank should satisfy are explained. And, test setup consisting of test specimen, test fixtures, hydraulic pressure equipment, load control system, and data acquisition system are presented, along with test load profiles considering the shear, equivalent compression, bending, and combined load. The reliability of the test results was verified by determining the error between the input load signal and the feedback load signal. In addition, through comparison with test results at key locations of the test specimen, it was confirmed that the numerical analysis well predicted the behavior of the test specimen. In conclusion, it was found that the test loads of the actuators were properly controlled within the acceptable tolerance in all tests. And, the reliability of the numerical analysis model was determined by comparing the numerical analysis and test results at key locations of the test specimen. Finally, the test specimen did not show damage or exhibit buckling that would cause serious structural defects that could compromise the required load. Thus, it is believed that the concept of the test method covered in this paper can be applied to next generation or larger scale launch vehicles in the future.</p>