Turntable is one of the inertial equipment which can detect and evaluate navigation equipments, its shafting’s static stiffness, dynamics and control accuracy can affect inertial test's reliability and confidence directly. In this paper, firstly conduct bearing and drive motor of uniaxial position turntable, then simplify the finite element model using software ANSYS. Got the deformation of the simplified turntable by static analysis, natural frequencies and mode shapes by modal analysis, the results show the turntable has large rigidity, and its natural frequency is much greater than the external excitation frequency so as to avoid resonance, the finite element analysis is a foundation for subsequent optimization.