A novel coordination polymer[{Cu(en)(2)}(V10O28)](n)center dot 2n[Cu(en)(2)(H2O)]center dot 2n(H3BO3)center dot 2n(H2O) was obtained by hydrothermal reaction. The compound crystallizes in the monoclinic crystal system, in the C2/c space group, with a = 26.490 (3) angstrom; b = 11.6558 (11) angstrom; c = 19.8426 (19) angstrom; beta = 124.011 (1)degrees; V = 5078.6(8) angstrom(3). The solid structure is formed by polymeric chains, [Cu(en)(2)(H2O)](2+) cations, and boric acid and water solvate molecules, stabilized through a multiple hydrogen bond network.