The magnetic suspension system is an important component of the superconducting magnet system, playing a supporting role for key components - the superconducting magnet and the cryogenic shield in strong magnetic fields and ultra-low temperature environments. The new adjustable suspension system is composed of 8 sets of adjustable three-dimensional rod components, which can not only withstand strong tensile forces but also adjust the coaxiality of the superconducting magnet. In addition, the three-dimensional rod components also innovatively integrate sensors for detecting the tension of the rods, and then analyze the mechanical strength and natural frequency of the suspension system through theoretical calculation, simulation and experimental verification. The results show that the structural design of this new suspension system is reasonable.