This paper makes an approach to genesis of uranium deposits by means of paleohydrogeology and provides a genetic model for sandstone-hosted uranium deposits in north Sichuan with reliable arguments.

• 笔者通过野外观察取样和室内研究，用古水文地质方法研究铀成矿来源和成因。对川北地区砂岩型铀成矿模式提供了可靠的论据。