Abstract: Mass concrete technology has been widely used in power plant construction, the quality of mass concrete, it directly determines whether the foundation of the power plant is stable, whether the generator foundation is reliable or not, therefore, how to control the hydration heat and cracks of mass concrete has become the main problem in power plant construction. Based on this, this paper analyzes the existing problems of mass concrete construction technology, this paper studies the technical problems and solutions of mass concrete construction, for reference.