The invention relates to a novel self-curing and shaping energy-saving process for industrial waste gypsum, and belongs to the technical field of building material. The industrial waste gypsum is mixed with modifying and solidifying agent and shaped into a gypsum bar capable of self-curing and drying. The modifying and solidifying agent is prepared by two or a plurality of lime, magnesite, cement, acetylene sludge, bentonite, fluorite powder, attapulgite powder, industrial residue powder, water glass, eleven salt classes such as sulfate and the like, boric acid, alcohol amine, isopropanol amine, polyvinyl alcohol, water-soluble cellulose, glutaric acid, butane diacid, tartaric acid and water-reducing agent. The process is used for preparing solidification adjusting agent or preparing gypsum powder in the cement manufacturing industry, has the advantages of simple technology, low investment and excellent performance, changes waste into valuable, saves energy and reduces consumption.