Abstract: The land border areas are key regions for the country to maintain territorial sovereignty, integrity, and security. Since the new century, China has made great achievements in its modernization drive, greatly improving its national strength, and fundamentally altering its border security situation. At the same time, the trend of regional population increase and decrease in China has been directly reflected in these border areas. The seventh national census data show that the total population in border areas across the country has begun to decrease, which has attracted widespread attention from Chinese society. Based on census data, the population change trends in border areas are presented, and the current security situation faced by China's border areas is analyzed. The research results indicate that the current population changes in China's border areas are an inevitable result of China's modernization process and will not adversely impact national defense and security in these areas. In the new era, we need to accelerate urbanization in border areas, reduce the populations engaged in agriculture and animal husbandry, improve the level of economic and social development in border areas, leverage China's modernization to drive the common development of neighboring countries, jointly build a community of shared future for mankind on both sides of the border, and create a higher level of security and stability in border areas.

Keywords: Land Border Areas, Population Shrinking, Orientation of Population Development

摘要： 陆地边境地区是国家维护领土主权完整和安全的重点区域。21世纪以来，中国现代化建设取得巨大成就，国家实力大幅提高，边境安全形势也发生根本性转变，同时，中国的区域人口增减分化趋势在边境地区得到直接体现。第七次全国人口普查数据显示，全国边境地区的总人口已经开始减少，这引起中国社会的广泛关注。基于人口普查数据，描绘了边境地区人口变化态势，分析了当前中国边境地区面临的安全形势。研究发现，当前中国边境地区人口变化是中国现代化进程导致的必然结果，基本不会对边境地区国防安全产生影响。新时代要加快边境地区城镇化建设，减少农牧业人口，提高边境地区经济社会发展水平，以中国的现代化带动周边国家的共同发展，构建边境两侧国家的人类命运共同体，铸就更高层次的边境地区安全和稳定。

关键词: 陆地边境地区, 人口收缩, 人口发展定位