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In this paper,we consider a class of extended boundary value methods (EBVMs) for Volterra functional differential equations and analyze the convergence and stability of the methods.It is proven under the classical Lipschitz condition that an EBVM is convergent of order p if the underlying boundary value methods (BVM) has consistent order p.The analysis shows that an EBVM extended by an A-stable BVM can preserve the corresponding stability property of the systems.In the end,we test the computational effectiveness by applying the introduced methods to the actual delay dynamical models,and the theoretical precision of the methods is further verified.