Abstract: The decentralized impulse control of a class of large-scale interconnected uncertain descriptor systems is studied by using Lyapunov method and matrix norm properties. With a kind of feedback controllers in decentralized state designed the norm bounds of system uncertainties are obtained to ensure the robust stabilizability. Meanwhile, the impulse control of a large-scale interconnected uncertain descriptor system and its every isolated subsystem is studied, thus giving the norm bounds of system uncertainties to ensure no impulse in closed-loop system. As a result, the simultaneous asymptotical stable norm bounds without impulse are obtained for the closed-loop system in the large-scale interconnected uncertain descriptor system and its every isolated subsystem.