Abstract: Wheat bran is rich in source and low in price. It is one of the good sources of dietary fiber. At present,the research and processing of wheat bran dietary fiber still need to be explored. Based on a comparative analysis of the researches presented in the published literatures on characteristics,extraction,and application of wheat bran dietary fiber,the main physical and chemical characteristics of wheat bran dietary fiber are summarized,several main preparation methods and their characteristics are analyzed,the application of wheat bran dietary fiber in the food industry is summarized,the problems existing in the current industry development are pointed out,and its development prospects are predicted in this paper. This paper aims to provide reference for the further study of dietary fiber and the development of wheat bran dietary fiber food.