The invention discloses a method for producing fluorberyllic acid and beryllium ammonium fluoride from a beryllium sulphate-containing solution. The method comprises the following steps: (1) adjustingthe pH value of the beryllium sulphate-containing solution and extracting by using an iron extracting agent to obtain an iron-extracted liquid and an iron-bearing organic phase; (2) extracting the iron-extracted liquid by using a beryllium extracting agent to obtain a beryllium-extracted liquid and a beryllium-bearing organic phase; (3) performing multi-stage counter-current washing on the beryllium-bearing organic phase by using a mixed solution of oxalic acid and sodium sulphite to obtain a washed organic phase and washing water; and (4) performing reverse extracting on the washed organic phase to obtain a fluorberyllic acid solution by using a hydrofluoric acid solution. According to the method, the beryllium production process flow is shortened, the beryllium recycling rate is improved, the production cost is reduced, and the beryllium quality is stabilized.