The problems of delay-dependent robust stability and stabilization for continuously singular timedelay systems with norm-bounded uncertainties are investigated in this paper. Based on a Lyapunov functional, which includes some non-positive items, the modified delay-dependent LMIs-based conditions are established for the singular time-delay systems to be regular, impulse free, and stable. Then, by solving the obtained LMIs, the state-feedback control law can be obtained. These conditions are also extended to the uncertain case. Finally, numerical examples are given to illustrate that the proposed results are effective and less conservative than the existing ones.Recently, much attention has been paid to the study of time-delay systems because that time delays inevitably exist in a variety of practical systems, such as chemical processes, nuclear reactors, biological systems, etc., and lead to the instability and poor performance of systems [6]. The related existing results can be classified into two types: delay-independent results [7,8] and delay-dependent results. Generally speaking, the delay-independent case is regarded as more conservative than the delay-dependent case, especially when the time delay is comparatively small. Hence, the study of delay-dependent stability for singular time-delay systems has received increasing attention. In terms of LMI approach, several delay-dependent stability criteria were given in [9,10,11,12]. [9,10] investigated the delay-dependent robust stabilization problem for uncertain singular time-delay systems by using model transformation and bounding technique for cross-terms. [11,12] also discussed the problem, and neither model transformation nor bounding technique for cross-terms is needed in the development of the results. By employing the delay decomposition approach, [13] established a delay-dependent criterion for singular time-delay systems to be regular, impulse free and asymptotically stable. By employing a new singular-type complete quadratic Lyapunov-Krasovskii functional, [14] established a Bounded Real Lemma (BRL) to ensure the system to be regular, impulse free and stable. However, to the best of our knowledge, the delay-dependent robust stability and stabilization for singular time-delay systems with norm-bounded parametric uncertainties is still not fully satisfactory and there is room for improvement. Especially, the partial non-positive Lyapunov functional based results for the stability and stabilization of continuous singular systems are not investigated. This is the main motivation for this research.This paper is concerned with the problems of stability and stabilization of singular system with time-delay and parametric uncertainties. The focus of this paper is to design a Lyapunov functional such that the obtained stability and stabilization results are less conservative than those obtained by the existing ones. Firstly, based on including some non-positive items (see V 2 (t) in Eq. (11)), the improved Lyapunov functional is obtained. Then, in terms of the...