This paper considers the problem of finite-time robust decentralized control for uncertain continuous-time singular large-scale systems(UCSLSS). The finite-time robust decentralized state feedback controller is designed. Firstly, a sufficient condition for finite-time robust stability of UCSLSS is presented via the generalized Lyapunov function approach. Then, a sufficient condition for finite-time robust decentralized stabilization via state feedback and the design approach of the finite-time robust decentralized state feedback controller are also presented. Finally, an example is provided to illustrate the effectiveness of the proposed approach.