Abstract: Developing the Sichuan-Chongqing energy strategic hinterland is a key strategic deployment to safeguard China's national energy security, to advance the Western Development Drive in a new pattern, and to boost high-quality development of the Yangtze River Economic Belt. The strategic position of the Chengdu-Chongqing Economic Circle provides top-level policy support, the location advantage of "land-port linkage" enables cross-regional energy allocation, and the abundant and complementary hydropower and natural gas resources form a solid material foundation. Yet there exist problems in the transformation of resource advantages into strategic effectiveness in this area: the structural mismatch between supply-side transmission bottlenecks and rigid demand growth, the conflict between upper Yangtze ecological barrier conservation and large-scale energy development, and the institutional barriers from administrative divisions and regional interest games. To address these problems, this paper proposes three solutions: a diversified coordinated energy system of "traditional energy as foundation, new energy for expansion" on the supply side, a "collaborative and mutually beneficial" green low-carbon development paradigm on the technology side, and a "vertical connectivity, horizontal coordination" mechanism on the institutional side. This study provides theoretical support for optimizing China's energy layout and advancing Chinese modernization, while developing a demonstrative "Sichuan-Chongqing Model".

Key words: national energy security strategy, development of national strategic hinterland, Sichuan-Chongqing region, green and low-carbon transition, Chengdu-Chongqing economic circle