This paper focuses on the synergy mechanism between safe flight and economic flight in the aviation field, and conducts an analysis from three dimensions: theoretical construction, technical paths, and practical cases. At the theoretical level, a nonlinear coupling model of safety-economy collaboration is proposed to reveal the Pareto frontier characteristics in dynamic trade-offs. At the technical level, explore the dual empowerment of innovative technologies such as hybrid electric propulsion, digital twins, and blockchain on safety redundancy and operational efficiency. At the practical level, through comparisons with international airlines, reflections on typical accidents, and predictions of future scenarios, systemic risks such as the implicit nature of safety costs and the lag in technical verification are revealed. Research indicates that in the future, aviation needs to reconstruct the safety-economy balance paradigm through disruptive technologies such as quantum computing and neuromorphic chips in cross-domain scenarios like supersonic passenger transport, intercity air traffic, and space tourism. This article provides a theoretical framework and technical path reference for the sustainable development of the aviation industry in complex environments.