The invention provides a glass manufacturing method capable of stably supplying high quality fluorophosphate glass. The manufacturing method for the fluorophosphate glass is a manufacturing method forfluorophosphates by introducing glass material containing non-vitrified material into a melting container for melting. The method is characterized in the non-vitrified material contains at least fluorine, oxygen, phosphorus, and the melting is performed with the mole ratio O/P between the amount of oxygen atoms O and the amount of phosphorus atoms P over 3.5.