Abstract: With the development of miniaturization trend of small spacecraft and commercial satellites, there is a tendency towards lighter weight, better performance, shorter development cycle and low cost. The power module is also becoming smaller, lighter and more integrated. The new laminated support-type power module adopts a laminated support structure, connecting the carrier plate and the base plate through molybdenum-copper supports while also taking into account the support of the power structure and the heat dissipation requirements of the power module. Compared with the traditional power module design, it achieves the goals of standardization and generalization, and saves volume and weight. This paper uses ANSYS software to analyze the dynamic response and study its mechanical reliability. Through the comparison of test-simulation data, the response error is within 10%. The scaffolding power module supply not only ensures reliability but also improves the integration of the power supply, providing direction and ideas for subsequent product design and improving product design efficiency.