Abstract: The stability analysis for a class of the regular and impulsive-free switched singular NCSs (networked control systems) with uncertain time-delay was studied. Based on the following two assumptions, the switched singular NCSs were modeled as asynchronous dynamical systems. One assumption was that the sensor node is time-driven, and the controller and actuator are event-driven. The other was that the uncertain transmission delay was less than one sampling period. The stability conditions of the systems were given with the Lyapunov function and LMI method, and the desired state feedback controllers were obtained at the same time as well. When the state feedback control laws were applied to the systems, the closed-loop systems are stable. Theoretical study and a simulation example were presented, and the results indicated the effectiveness of the proposed method.