Abstract: It has always been China's strategic need to shape a stable surrounding environment.The great changes in a century have not only brought unprecedented opportunities to the surrounding areas, but also made the surrounding areas face new challenges. To do a good job in neighboring diplomacy, we need to reposition the neighboring regions to clarify their strategic value. At present, neighboring diplomacy is facing the challenges such as the deterioration of the surrounding diplomatic environment due to the adjustment of the U.S. policy toward China. Reshaping the regional production network in the digital age. The increase in the population of countries with a population of 100 million in neighboring regions brings about conflicts between countries and the diminished spillover effects of economic diplomacy. To cope with challenges, China can adopt strategies to improve China's ability to shape the surrounding geoenvironment and the supply of regional public goods, adhere to transpositional consideration, multilateralism, and landsea coordination.

Key words: big change, surrounding environment;peripheral diplomacy, strategic choice;

摘要： 塑造稳定的周边环境始终是中国的战略之需，百年大变局既给周边地区带来前所未有的机遇，也使得周边地区面临着新的挑战。做好周边外交，需要对周边地区重新定位以明确其战略价值。当前周边外交面临着美国对华政策调整恶化周边外交环境，数字化时代地区生产网络的重塑，周边地区亿级人口国家汇聚带来的国家间矛盾，经济外交的外溢效应减弱的挑战。应对挑战，中国可以采取提升中国塑造周边地缘环境和地区公共产品供给的能力，坚持换位思考、多边主义和陆海统筹的策略。

关键词: 大变局, 周边环境, 周边外交, 策略选择