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Functional differential equations arise widely from various fields of science and technology.For solving this type of equations,in recent several decades,a lot of numerical methods are presented.In this talk,we focus on boundary value methods and their block forms.We construct a class of extended block boundary value methods (B2VMs) for Volterra delay integro-differential equations and analyze the convergence and stability of the methods.It is proven under the classical Lipschitz condition that an extended B2VM is convergent of order p if the underlying boundary value methods (BVM) has consistent order p.The analysis shows that a B2VM ex-tended by an A-stable BVM can preserve delay-independent stability of the underlying linear systems.Moreover,under some suitable conditions,an extended B2VM can also keep delay-dependent stability of the underlying linear systems.In the end,we test the computational effectiveness by applying the introduced methods to the Volterras delay dynamical model of two interacting species,where the theoretical precision of the methods is further verified.