Abstract:The background,the preliminary technical strategy and the long-term plan for China¢s high-level radioactive waste disposal program are presented. China started research on HLW disposal in 1985,with a plan to build a national repository in the middle of the 21st Century. Beishan area,located in Northwest China¢s Gansu Province,is selected as the most potential area for China¢s HLW repository. During 1999–2004,preliminary site characterization evaluation has been performed,including surface geological,hydrogeological and geophysical investigation,and drilling of 4 boreholes (BS01,BS02,BS03,BS04) and in-situ tests in boreholes. Favorite results have been obtained from the site characterization campaign. Progresses are also made in studies on buffer/backfill materials,radionuclide migration and natural analogue.