Abstract: It`s known that National Physical Geological Data gathered extremely abundant information within which shows characteristics of large quantity,multi-channels and wide sources.Therefore,these physical geological data should be sufficient to reflect the overall geology characteristics and conditions of mineral resources in China,and represent the significant results of national geological works,further to reveal innovative achievements on geological science.Overall,the physical geological data shared characteristics such as typicality,representative,particularity and systemic national wide.Based on the overall positioning of storage system,the paper identified the initial collection scope and content of the national geological data,research of the screening condition for solid minerals.Meanwhile,Gejiu and other 31 tin deposits are determined as national physical geological data based on the screening elements such as scale of deposit,genetic type,temporal and spatial distribution,which is not only a reflection metallogenic characteristics and level of geological prospecting of tin-ore,but also a necessary basis for systematic collection of tin-ore deposits.