Abstract:ADS(Accelerator Driven Sub-critical System) takes the spallation neutrons as the external neutron source to drive the sub-critical blanket system,has the inherent safety.With the performances of hard and wide neutron spectra,large flux,powerful transmutation ability for long-lived radiation nucleus,ADS can not only significantly reduce the radiation lifetime,level and volume,but also output extra energy so as to improve the utilization of fuel,has been universally regarded as the most promising approach to dispose the long-lived nuclear wastes.At 2011,Chinese Academy of Sciences(CAS) started the"Strategic Priority Research Program"named"Future Advanced Nuclear Fission Energy".As one of the two parts of this program,ADS part will strive for the self-development of the series key technology from test facility to demonstrate facility,and make greater contributions to the national energy supply and sustainable development of nuclear fission energy.