Modern engineering management activities have all become more complex,being far beyond the economic and technological areas,due to their growing grand scales,increasingly complex structures and integrated systems.Therefore,we need focus our attention on engineering management activities by resorting to dialectical thinking and take full account of them based on the height of the new era.This paper described and analyzed engineering management activities from the following 5 aspects:the cyclic promotion between engineering management theory and engineering management practice,the in-depth integration of engineering management concepts with engineering management methods,the coordinated harmonization of engineering management system with engineering management details,the mutual promotion between engineering management standardization and engineering management innovation,the common enhancement between engineering management team and engineering management system. Modern engineering management activities have all become more complex, being far beyond the economic and technological areas, due to their growing grand scales, increasingly complex structures and integrated systems.Therefore, we need focus our attention on engineering management activities by resorting to dialectical thinking and take full account of them based on the height of the new era. This paper described and analyzed engineering management activities from the following 5 aspects: the cyclic promotion between engineering management theory and engineering management practice, the in-depth integration of engineering management concepts with engineering management methods, the coordinated harmonization of engineering management system with engineering management details, the mutual promotion between engineering management standardization and engineering management innovation, the common enhancement between engineering management team and engineering management system.