The purpose of this paper is to investigate and analyze an e-readiness assessment tools. In order to achieve this goal, 31 research papers have been selected and analyzed. Our review was divided into three steps: literature search, selection of eligible papers, data extraction and summarizing. Based on the literature analysis and authors’ practical experiences, a review of e-readiness assessment tools and a list of e-readiness assessment factors were done and presented in the paper. The results of the study can support researches and practitioners in effectively adopting e-readiness assessment tools and provides an insight into its state of the art.