Abstract:With the gradual implementation of the major projects in aerospace engineering, space deployable truss structure is heading towards the direction of large-scale, lightweight and multi-function, and this type of truss has the features of repeatability, flexibility and complex configuration. To satisfy the high precision and high reliability demands of the large space structure, the studies on dynamic modeling, nonlinear vibration and vibration control are getting more and more complicated and difficult to deal with. Therefore, the research on the equivalent continuum modeling of the large space deployable structure has become a crucial and hot topic. The paper presents the research situation about the equivalent dynamic modeling of the large space deployable truss structure, and provides an overview of the achievements in the equivalent dynamic modeling object and method. The key scientific issues seriously needed to be further studied in the fields of equivalent dynamic modeling and the corresponding nonlinear vibration and vibration control are extracted.