大食物观对耕地“非粮化”治理的理念深化、内涵拓展、目标转型和策略演进等提出了转型要求与更高标准，基于大食物观视域下重新审视耕地“非粮化”治理，不仅有助于改善粮食供需失衡态势，也可为保障国家安全提供基础支撑。研究发现：（1）大食物观视域下耕地“非粮化”的中心问题并不在于“粮”与“非粮”的二元对立，而是“大粮食观”下多元食物品类间的合理配置。（2）大食物观与耕地“非粮化”治理在理论逻辑上具有根本目标和价值取向一致性、理论缘起与实践遵循同源性，决定了二者在实践逻辑上具有交互联动性；树立大食物观是耕地“非粮化”治理的指导与遵循，耕地“非粮化”治理是践行大食物观的基础与途径。（3）大食物观视域下耕地“非粮化”治理面临种植结构调整滞后，粮食重要程度与收益梯度倒挂、增产瓶颈与损耗浪费并存、普适整改举措与地方特殊性错位等问题。（4）综合藏粮于地、藏粮于种、藏粮于技、藏粮于损与藏粮于策，提出大食物观下耕地“非粮化”系统治理的“五藏协同”策略。立足于大食物观的多元需求和整体视域系统推进治理策略优化，可为开展农食系统多维转型背景下耕地“非粮化”治理的理论深化和实践探索提供有益参考。

The greater food approach sets forth elevated requisites and novel benchmarks for the advancement of conceptualization, expansion of connotations, transformation of objectives, and evolution of strategies in the governance of non-grain conversion of cultivated land. A reevaluation of "Non-grain Conversion" of cultivated land governance through the greater food approach not only aids in rectifying the imbalance in food supply and demand, but also establishes a fundamental underpinning for national security assurance. Findings reveal that: (1) The crux of "Non-grain Conversion" of cultivated land under the greater food approach lies not in the dichotomy of "grain" versus "non-grain" but rather in the judicious allocation of diverse food categories within the framework of the greater food approach. (2) The greater food approach and "Non-grain Conversion" of cultivated land governance in the theoretical logic of the fundamental goal and value orientation consistency, theoretical origin and practice to follow the same origin, determines the two in the practical logic of interaction and linkage, embracing the greater food approach serves as the guiding ethos for "Non-grain Conversion" of cultivated land governance, constituting the bedrock and avenue for enacting the greater food approach. (3) Governance of "Non-grain Conversion" of cultivated land under the greater food approach encounters challenges such as lagging adjustments in planting structures, an inverted significance of grain and income gradients, simultaneous existence of production bottlenecks and wastage, as well as incongruences between universally applicable rectification measures and localized idiosyncrasies. (4) Proposals encompass five overarching strategies for systematized governance of "Non-grain Conversion" of cultivated land oriented towards the greater food approach, focusing on the preservation of grain within land, crops, techniques, losses, and policies. Grounded in the multifaceted demands and holistic outlook of the greater food approach, the optimization of governance strategies proffers invaluable insights for the theoretical refinement and practical exploration of "Non-grain Conversion" of cultivated land governance amidst the backdrop of a multidimensional transformation in the agricultural and food system.