The different methods for extracting fluoride from tea were compared, and the potentiometric method for determining fluoride in tea liquid was optimized. The results showed that the recoveries with the boiling water extraction method (93.17％) were higher than those with the shaking extraction in acidic water (68.19％) and the ultrasonic extraction (62.38％). In this paper, the linear range of potentiometric determination of fluoride in tea was between 30 and 200 mg?kg^?1, and the mean recovery was 90.48％ with the square of the correlation coefficient (R²) of 0.992 2. The limit of quantification (LOQ) and limit of detection (LOD) were 54 mg?kg^?1 and 18 mg?kg^?1, respectively. The fluoride contents in four tea samples from Anhui province were ranged from 52.26 mg?kg^?1 to 73.80 mg?kg^?1, and the fluoride components in spring tea were lower than that in autumn tea, and both of them were lower than that of the national standard of fluoride in tea (200 mg?kg^?1). The results provide reliable methods for rapid determination and quality assessment of fluoride in tea.