A rapid and simple determination of thorium in minerals and metallugical processing products by XRF analysis is described. It is bisect ou the use of ions exchange paper with static sorption for 10 minutes in 0.5-2.0 N hydrochloric acid. The coefficient of variation for sample containing 0.1% Th is 3.26%(n= 15).The method can be used for determination of thorium within the range of 0.00x-x%.