This study examined the impact of activity-based Costing ABC and information technology IT on decision-making and competitive advantage in Sudanese industrial projects. The experimental results of this study were based on a questionnaire administered to accountants and administrators in 61 industrial projects in Sudan, and the data were analyzed using partial least squares. The study's results indicate that using activity-based costing and information technology methods in determining costs, evaluating company profits, and approximating product costs positively affects managerial decisions while improving the competitive advantage of industrial projects. The use of activity-based Costing and information technology affects decision-making and competitive advantage in industrial projects in Sudan. The study recommended that continuous training helps obtain the benefits of using activity-based Costing and information technology in industrial projects. The results show that the result gained from using activity-based Costing and information technology in determining costs, decision-making, and expanding competitive advantage has been affected by attending training programs, gradually, based on learning the capabilities of the activity-based costing system and the information technology system.