Sodium tungstate is mainly used to produce Sodium Tungstate and depth of processing preparation of tungsten trioxide, tungsten, tungsten carbide, tungsten carbide, tungsten, tungsten, etc., to made metatungstate, tungsten acid and other tungsten compounds used in petroleum chemical, plating, textiles, flame retardants, water, dyes, pigments, inks, etc..

It is also thought to be a possible inhibitor of protein-tyrosine phosphatase (PTPase). It is also sometimes used as a fireproofing agent.

In organic chemistry, sodium tungstate is used as catalyst for epoxidation of alkenes and oxidation of alcohols into aldehydes or ketones.

It is also known for its anti-diabetic effects; Researchers have identified the pathways through which sodium tungstate improves pancreatic function and beta cell proliferation.