By sampling in the orehosting bed rock of the Shihongtan interlayer oxidized zone type uranium deposit, detection and studying on the REE, writers considered that the type of initial rock in the orehosting bed is granite, formed at passive continental margin, which comes mostly from Jueluotage Mountain of southern denudation zone. The rock is product of low temperature lithogenesis, and it is proved that the deposit forms on lower temperature. With different geochemical REE on the content variation indicates that there is REE concentration and fractionating in the process of interlayer oxidized effect，the stronger oxidized effect result in more light REE and the stronger REE fractionating effect, means the stronger hydrolytic action and uranium oxidized and moving action. With the forming of uranium mineralization in the redox transitional zone on, heavy REE concentration occurs. Uranium and heavy REE manifest the similar geochemical characteristic. Their deposition are related to the dissociation of complexion of carbonation.