By investigating both domestic and foreign literatures of big data, the current research found that the understanding of “big data method” in domestic communication field could be categorized into five different types, and the concept of “big data method” had been assigned different meanings. However, according to the analysis, the term “big data method” barely appeared in international research field, which suggested the China-exclusive nature of this concept. The understanding regarding “big data method”, either as a specific technique or as a quantitative research method or as behaviors of data mining, collection and analysis, all failed to support essential breakthrough in nature. Therefore, it is not rigorous nor scientific to regard the “big data method” as an innovative research method.