Lithium was recovered from low-lithium and high-salt solution by phosphoric acid precipitation method.The effects of pH,temperature and phosphate concentration on lithium recovery rate and product impurity removal were studied.The re-sults showed that for high-salt and low-lithium solutions,the reaction temperature was 90 ℃,the mass fraction of 80% of phosphoric acid was 1.1 times the reaction amount and the pH of the solution before the reaction was at 7.5~8,then the recovery rate of lithium was 96.82%, and the product quality met the industry standards requirements.The method has the advantages of high conversion rate,full utilization of lithium resources,simple process,easy to operate and easy to industrialize.It is providing a certain theoretical guidance for the recovery of lithium in low-concentration lithium-containing solutions.