In the paper，based on some relevant research literature concerning index system for science popularization，it gives a definition of science popularization capability for local enterprises，conjures its theoretical mode and index system，and makes an quantitative analysis and evaluation of science popularization capability for local enterprises from 31 provinces and municipalities under the jurisdiction of the Central Government by adopting the principal component analysis（it provides an important instrument for the measurement of the actual science popularization capability for various local enterprises）.