As an important pharmaceutical intermediate and fine chemical raw material, 3-pyridine formaldehyde has a wide range of applications and broad market prospects. In medicine, as an important pharmaceutical intermediate, 3-pyridine formaldehyde can be used to synthesize the laxative bisakodine, and it is also the raw material for the synthesis of organophosphate detoxification drug dephosphoridine. Recently, it has been reported that 3-pyridine formaldehyde can also be used as the raw material for the synthesis of anti HIV protease inhibitors; In agriculture, 3-pyridine formaldehyde is a necessary intermediate for the synthesis of some acaricides; In the photosensitive industry, 3-pyridine formaldehyde can be used to synthesize nitrogen-containing heterocyclic color photographic materials.