Abstract: A robust decentralized connective stabilization problem of a class of large-scale descriptor interconnected systems with structural reconstruction was studied in this paper. The structural reconstruction included two cases in which some subsystems may be disconnected and then reconnected,as well as some new subsystems were added to an original structure. Firstly,the mathematical description of the large-scale descriptor interconnected system was given when the structure of the system changed.Then,the sufficient conditions of robust decentralized connective stabilization for large-scale descriptor interconnected systems and the one with expanding construction under the premise of admissibility of the large-scale descriptor systems was obtained by using Lyapunov theory and LMI approach. And the design approach of the state feedback controllers was presented. Finally,a numerical example was given to show the effectiveness of the proposed approach.