The aero-engine is a core field of the national strategic emerging industries. Taking the fuel atomization and injection technology of aero-engines as the entry point, this paper systematically analyzes the full-chain transformation process of such technologies from basic research, applied research, concept validation, engineering validation to industrial application. It reveals the key bottlenecks and core challenges at each stage, and proposes systematic pathway optimization suggestions for technology transformation from the dimensions of university enterprise collaboration mechanisms, construction of concept validation platforms, technology readiness level management, and industrial ecosystem building.