P-Fluorobenzaldehyde is an important fine chemical intermediate, which is used as the main raw material for the synthesis of various pesticides, medicines, surfactants, polymer monomers, and antifungal agents. For example, it is used in medicine to synthesize antihypertensive drugs, antipyretic analgesic anti-inflammatory drugs, anti-cancer drugs, muscle relaxants, in pesticides, it is used to synthesize cyfluthrin and cyfluthrin, and to synthesize intermediate metaphenoxy. Base p-fluorobenzaldehyde, and polymer monomer p-fluorostyrene, of which p-fluorostyrene can be widely used in the manufacture of recording materials, thermoplastic resin coatings, liquid crystal materials, etc.