In this paper, we summarized well-logging response characteristics of SichuanTriassic potash deposits (i.e.polyhalite andpotassium-rich brine). And based on that, we firstly put forward well-logging identification method of potash; and secondly we introducedwell-logging cyclostratigraphy prediction method of that, which mainly used to effectively speed up data process; and finally, weused the two methods together to depict distribution of SichuanTriassic potash deposits. Based on our prediction results, we not only dividied six salting forming periods into four salinity cycles, but pointed out three potash forming periods and four favorable potassium areas.