At present, the science popularization work in Chinese universities and colleges is unbalanced and the level of science popularization is weak. The universities have not been played fully their important function in improving the scientific literacy of the public. Starting from the status of science popularization in Chinese universities and colleges, I proposed a theory of “hard-ability” and “soft skills” of capacity building using communication theories and gave some suggestions on subjects, contents and objects of science popularization combining each aspects of science popularization process.