Abstract: Cloud computing attracts a considerable attention in both academic and business areas in the meantime. In most markets, many cloud computing and BigData frameworks used a large scale of data processing. Hadoop is one of the best choices in open-source cloud computing and BigData framework used more and more in the business world. Recently, the weaknesses of security methods emerged as one of the main challenges interfering with development in general. Hadoop’s writing and reading HDFS blocks also lack the support of security so, we need a solution to secure the Hadoop distributed file system. This study discusses the current security methods of Hadoop and provides a comparative view of BigData security mechanisms, its security property and performance; thinking carefully about some methods to improve its trustworthiness and security.