Abstract: According to characteristics of regional mineralization and typical ore deposits in Guangxi, the authors made a systematic summarization of features of lateritic high-iron gibbsite bauxite mineralization and a thorough analysis of the factors controlling this type of bauxite deposits. Comprehensive localization and quantitative prognosis of lateritic high-iron gibbsite bauxite deposits were carried out by using the GIS-based deposit model comprehensive geological information prediction method. 42 ore targets were delineated, and potential resources are estimated to be about 767 million tons. These results have important guiding significance for further prospecting and development of the lateritic high-iron gibbsite bauxite deposits.