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The stability of a type of Takagi-Sugeno (T-S) fuzzy control systems is considered.The plant of T-S fuzzy system has parameter uncertainties.By using the off-axis circle criterion and Kharitonov Theorem,a sufficient condition is derived to analyze the global asymptotic stability of T-S fuzzy control system.The proposed method has a graphical explanation which facilitates stability analysis.A numerical example is also given to demonstrate how to use our approach in analyzing certain T-S fuzzy control systems.