In this paper, the sensor fault accommodation problem for the attitude control system of near space vehicle in reentry flight phase is investigated by using the generalized augmented system method. Firstly, the T-S fuzzy model is represented by the nonlinear attitude control system of near space vehicle in reentry phase. Meanwhile, the sensor fault model is introduced. Secondly, the T-S fuzzy model with sensor fault for near space vehicle is transformed into a T-S fuzzy singular system by using the generalized augmented system. A full-dimension state observer which is used to estimate the state vectors and the sensor fault vectors of the attitude control system is designed. Based on the estimated fault, the feedback control scheme is given by utilizing sensor fault compensation technique, such that the closed-loop control system can asymptotic accommodate the effect of sensor fault. Finally, simulation results are given to demonstrate the effectiveness of the proposed approach.