Abstract: Impurities such as silicon, aluminum, and fluorine in lithium concentrate significantly affect the subsequent refining process, potentially reducing lithium recovery rates and impacting product quality. This study proposes a rapid method for the simultaneous determination of SiO₂, Al₂O₃, and F contents in lithium concentrate. Lithium concentrate samples were pretreated before fusion with sodium hydroxide-sodium peroxide mixture, followed by analysis using the silicon molybdenum blue spectrophotometric method, complexometric titration, and ion-selective electrode method. The effects of flux selection, fusion temperature and duration, and acidity on the determination results were investigated. The test shows that when using the sodium hydroxide-sodium peroxide mixed flux, with a fusion temperature of 700 °C, fusion time of 15 min, and adding 20 mL of hydrochloric acid, the sample is completely dissolved. The relative standard deviations (RSD, n=7) of SiO₂, Al₂O₃, and F using the method were 0.53 %-0.57 %, 0.37 %-0.64 %, and 0.31 %-1.18 %, respectively, meeting the requirements of the GB/T 32465 — 2015 Requirement for Verification & Validation of Detection Methods and Internal Quality Control on Chemical Analysis for RSD, and the results are consistent with 3 industrial standard methods. The method can be applied to the simultaneous and rapid analysis of SiO₂, Al₂O₃, and F contents in lithium concentrate.