《The Ministry of Education document about suggestion on promoting higher occupational education reform & innovation as well as leading occupational education development》(occupational〔adult〕education〔2011〕No. 12)indicates that international communication and cooperation should be encouraged and supported among higher educational school so as to take part in setting its international standards & rules, increase its international influence, introduce high-quality educational resources, and improve education quality. The thesis is based on the Project of Sino-foreign Certificate Award, utilizing data mining to discover and display the elements groups that affect English teaching quality, further providing a new pattern in quality analysis & teaching improvement to construct a more scientific, objective & specific quality evaluation system under the background of “Big Data Era”.