The problem of robust active vibration control for a class of electro-hydraulic actuated structural systems with time-delay in the control input channel and parameter uncertainties appearing in all the mass,damping and stiffness matrices is investigated in this paper.First,by introducing a linear varying parameter,the nonlinear system is described as a linear parameter varying (LPV) model.Second,based on this LPV model,an LMI-based condition for the system to be asymptotically stabilized is deduced.By solving these LMIs,a parameter-dependent controller is established for the closedloop system to be stable with a prescribed level of disturbance attenuation.The condition is also extended to the uncertain case.Finally,some numerical simulations demonstrate the satisfying performance of the proposed controller.