Abstract: The pneudraulic oil source equipment in a rocket launching system operates under severe vibration coditions. To mitigate these effects, a vibration isolation design is essential. Initially, a six-degree-of-freedom vibration isolation system model was developed and solved based on an analysis of the vibration mechanism. Subsequently, numerical simulations and verifications were conducted on the preliminary isolation design scheme. Following this, the layout of the vibration isolators was optimized. The optimized vibration isolation scheme demonstrates that the vibration isolation coefficients for the pneudraulic oil source equipment in the x, y, and z directions are all less than 0.05, indicating effective vibration isolation and improved stability. The design and optimization methodology for vibration isolation presented in this paper can serve as a reference for the development of similar systems.