[目的] 探究东北地区37个地市国土空间开发保护现状及内部差异性，及时识别和发现国土空间开发保护的风险和问题，为编制东北地区国土空间规划和探索东北地区国土空间开发保护格局优化路径提供理论依据。 [方法] 运用压力-状态-响应(PSR)模型，以安全、创新、协调、绿色、开放、共享为评价要素构建国土空间开发保护现状评价指标体系，对东北地区37个地市国土空间开发保护的现状水平及其内部各要素的互动关系进行综合评价。 [结果] ①2018年东北地区各地市国土空间开发保护现状评估综合分值在7.35～61.41分之间，各地市平均得分为18.65分。 ②黑龙江省、辽宁省、内蒙古自治区和吉林省国土空间开发保护现状评估得分平均值分别为20.35，18.92，16.77，16.34。 ③东北地区各地市压力层、状态层、响应层平均分值分别为5.21，7.69，5.75。 [结论] 2018年东北地区37个地市国土空间开发保护水平总体不高，且区域联动效应较差；东北地区各地市国土空间开发保护压力层、状态层、响应层得分差异较大，没有统筹安全、创新、协调、绿色、开放、共享的协同发展。
[Objective] The status assessment and internal differences of territorial space development and protection in 37 cities in Northeast China were determined in order to identify and discover risks and problems regarding territorial space development and protection in a timely manner in order to provide a theoretical basis for compiling the territorial spatial planning of Northeast China and for exploring the optimization path of territorial spatial development and protection pattern in Northeast China. [Methods] Using a pressure state response (PSR) model, and taking security, innovation, coordination, green, openness, and sharing as the evaluation elements, an evaluation index system of the current situation of land and space development and protection was constructed to comprehensively evaluate the current level of land space development and protection and the interactive relationships of internal factors in 37 prefectures and cities in Northeast China. [Results] ① In 2018, the comprehensive score of the evaluation of the status assessment of territorial space development and protection of 37 cities in Northeast China ranged from 7.35 to 61.41, and the average score was 18.65. ② The average scores of the assessment of the status of territorial space development and protection in Heilongjiang, Liaoning, Inner Mongolia, and Jilin provinces were 20.35, 18.92, 16.77, and 16.34, respectively. ③ The average scores of the pressure layer, the state layer, and the response layer in prefecture-level cities in Northeast China were 5.21, 7.69, and 5.75, respectively. [Conclusion] In 2018, the overall level of territorial space development and protection in 37 cities in Northeast China was not high, and the regional linkage effect was poor. The scores of the pressure layer, the state layer, and the response layer of territorial development and protection in various cities in Northeast China were quite different, and there was no coordinated development of safety, innovation, coordination, green, openness, and sharing.