In this paper,bipartite matching extendability of Harary graphs are studied.We have found that: For all integers n with n1,H3,2nis bipartite matching extendable if and only if n=2,3;For all integers n with n≥3,H4,2nis not bipartite matching extendable;For all integers n with n≥3,H5,2nis bipartite matching extendable if and only if n=3,4;For all integers n with n≥3,Hr,2nis bipartite matching extendable for all positive integers r(6≤r≤2n).