On Feb. 7,  2012, Chinese Dome-A Observatory framework plan workshop was hold in  Purple Mountain Observatory. More than 30 Scholars joined the  workshop. As a recommended project in the twelfth five-years plan of  China, the application progress and the advanced researches of the  Chinese Dome-A Observatory were reported. During the workshop, site  properties, ground constructions,

high-resolution  optical&IR 2.5-m telescope, 5-m Teraherz telescope, supporting  platform, and control system were discussed. The advanced research is a  key step for the construction of Chinese Dome-A observatory in near  future, and will offer valuable information for future big science  projects.