2-Chloro-4-fluorobenzoic acid is an important pharmaceutical and pesticide intermediate, and can also be used as a liquid crystal material, with the advantages of high value and good market prospects. From a physiological perspective, fluorinated drugs have better biological penetrability and selectivity in interacting with target organs compared to general inorganic drugs, and the dosage typically used is greatly reduced. Therefore, fluorine is widely used in the preparation of fluorinated medical drugs with special therapeutic effects.