The EDELWEISS-II experiment uses cryogenic heat-and-ionization Germanium detectors in order to detect the rare interactions from WIMP dark matter particles of local halo . New-generation detectors with an interleaved electrode geometry were developped and validated , enabling an outstanding gamma-ray and surface interaction rejection . We present here preliminary results of a one-year WIMP search carried out with 10 of such detectors in the Laboratoire Souterrain de Modane . A sensitivity to the spin-independent WIMP-nucleon cross-section of 5 \times 10 ^ { -8 } pb was achieved using a 322 kg.days effective exposure . We also present the current status of the experiment and prospects to improve the present sensitivity by an order of magnitude in the near future .