To undestand the development of fluorine detection technology， the detection and analysis technology of fluorine in different food matrices in recent years are summarized， including fluoride ion selective electrode method， colorimetric method， ion chromatography， high performance liquid chromatography. Each various fluorine determination methods have their own advantages and disadvantages. And there are differences in the scope of application. It is the main research direction in the future to establish a detection technology for the determination of fluorine by ion chromatography with high sensitivity and selectivity.