Choose the database, which stored 10 years’ papers related to cloud computing from 2005 to 2015 in CNKI, as the data source. Then through screeningkeywords to obtain the required data, which select to obtain high frequency words. Through the use of SPSS software for cluster analysis to study the relationship between the high frequency words. High frequency words are selected as component of their class group, divided in corresponding key research areas. By using the method ofliterature quantitative analysis to make high frequency words statistics and the year of publication statistics, which can describe the current research distribution of cloud computing. Finally, make the conclusion and give the research directions for relevant personnel reference.