With significant breakthroughs continuously being made in digital science,digital-driven methods have now permeated all life cycles of the industrial sector,bringing about an informatization revolution in tra-ditional industrial workflows.SCR denitrification catalyst is one of the most effective technologies for denitrifi-cation and environmental protection,but the current digitalization level in this industry is relatively low.Digi-tal transformation has become one of the urgent issues to be addressed.Taking the digital transformation needs of SCR denitrification catalysts as a starting point,this paper summarizes the application scenarios of data acquisition technology,condition monitoring technology,anomaly warning technology,decision support technology,and intelligent control technology in industrial digitalization,examines the innovative applications brought by new digital technologies in the design,production,management,and service phases,and analyzes the opportunities and challenges faced in industrial digital transformation.