Abstract: Personal epistemology is individuals’ belief about knowledge and knowing, which has an important mediated impact on individuals’ cognitive processing and behavior. Based on an analysis of those literatures, the article introduces various theories of personal epistemology, which including several developmental models, multiple dimensions epistemological belief system, epistemological theories perspective and epistemological resources perspective. Finally, the article gives some suggestions for future research, such as to provide a more integral theory by using diverse method and to resolve the issue of domain generality versus domain-specificity

Key words: personal epistemology, developmental model, epistemological beliefs system, epistemological theories, epistemological resources