This paper researched the effect of six surfactant including aodium dodecyl benzene sulfonate(SDBS), cetyltrimethyl ammonium bromide(CTAB), po1yoxyethylene octylphenol ether (OP-10), Triton X-100(TX-100), FSO and their mixture on surface tension of the leaching solution and on leaching rate of uranium in sandstone uranium ores. Results showed that all kinds of surfactant could observably reduce the surface tension of the leaching solution at low concentration. The surface tension of leaching solution containing 1g/L FSO and 0.01g/L mixture surf...