Based on the results of the 1: 50000 stream sediment survey in the Keeryin area, western Sichuan, the R-type cluster analysis and factor analysis were carried out for the eight elements closely related to the rare metal deposits in this area. The study shows that the correlation between the elements is good, the main ore element is Lithium. The anomalies of the elements are high intensity, large scale, good registration, mainly produced in the external contact zone of Keeryin rock body. Combined with geological and geophysical results, eight lithium polymetallic prospecting targets were delineated.