Method for extracting rubdium and cesium from acid brine

The invention discloses a method for extracting rubdium and cesium from acid brine. The method includes the steps that brine is pumped into an ammonium type chelate resin adsorption column, calcium ions and magnesium ions are adsorbed through the ammonium type chelate resin adsorption column, and effluent is brine without the calcium ions and the magnesium ions; the effluent is mixed with t-BAMBP or kerosene or sulfonated kerosene to be shaken, and a mixture stands still for layering and separation of a water phase and an organic phase; and reextraction is conducted on the organic phase, and the water phase containing rubidium chloride and cesium chloride is obtained. The method is simple in process, low in production cost, capable of achieving separate extraction for removing rubdium and cesium ions in radioactive water and free of secondary pollution.