The invention relates to a method used for removing heavy metal endocrine disrupters in reverse osmosis concentrated water. According to the method, a titanium dioxide/graphene oxide nanometer composite material is prepared and is taken as a catalyst, photocatalysis reaction is carried out under ultraviolet lamp (mercury lamp) irradiation; graphene oxide is capable of reducing the recombination rate of electron hole pairs generated by titanium dioxide, and improving the photocatalytic activity of titanium dioxide; a large amount of hydrophilic oxygen-containing functional groups are dispersed on the surface and the edge of graphene oxide, and possess absorption capacity on heavy metal ions, so that the reduction effect of titanium dioxide on heavy metal ions is improved, an absorption-reduction system is formed, and catalysis efficiency is increased. The method is capable of reducing damage on water body environment and animals and plants, solving a problem that low concentration heavy metal ions in industrial wastewater is difficult to remove, and removing heavy metal endocrine disrupters in reverse osmosis concentrated water, and is promising in application prospect.