Demulsifier HYP-102 is a mixture of polyether, polyether ester, alcohol solvent and alkane solvent and belongs to low-medium flash point demulsifier. It provides excellent demulsification effect for produced fluid of crude oil with high wax content of medium-high water-cut oilfields and has characteristics of rapid dehydration, clean dehydrated water, high final dehydration rate and tidy oil-water interface. This product is mainly used for dehydration and desalination of crude oil of oilfields andrefineries.