Abstract: Abstract：In order to exhibit and utilize the main ideas and results of national Ni ore resource potential, the authors put forward Ni resources prediction types, i.e., magmatic type, weathering crust type and marine sedimentary type, and summarize their basic characteristics, metallogenic regularity, utilization status, prediction factors and assessment methods. Based on analyzing the ore-forming geological background, ore geochemical features, intensity distribution, intensity of mineralization and potential resources, combined with the characteristics of all kinds of Ni ore deposits,the authors have assigned Ni resources to eight main successive strategic base areas, i.e., Kalatongk, Jueluotag, Beishan Mountain, Liaoji, Longshou Mountain, Qimantag, Mojiang-Jinping and Baotan, which can be used to guide the Ni ore exploration deployment.