“The Safety Case and Safety Assessment for the Disposal of Radioactive Waste(SSG-23)”was published by IAEA in 2012,which provides guidance to assess and validate the safety of all kinds of disposal facilities of radioactive waste.OECD/NEA set up agroup involved with 17countries to move on the research on the safety case of radioactive “The Safety Case and Safety Assessment for the Disposal of Radioactive Waste (SSG-23) ” was published by IAEA in 2012, which provides guidance and assess the safety of all kinds of disposal facilities of radioactive waste. OECD / NEA set up agroup involved with 17countries to move on the research on the safety case of radioactive