通过对中国发明专利数据进行挖掘和计量分析,总结了我国控释肥料的专利申请情况、行业发展现状、技术领域分布及重点创新主体的专利技术布局。结果表明,控释肥料经过快速增长后,专利申请量仍然很高,趋势平稳。通过分析一些重点企业和科研院所,可以了解目前市场上的技术热点,为我国控释肥发展提供借鉴和参考。 Through the excavation and measurement analysis of the invention patent data in China, the paper summarizes the patent application situation, industry development status, technical field distribution and the patented technology layout of the key innovation entities in our country. The results showed that after the rapid growth of controlled release fertilizers, the number of patent applications remained high with a steady trend. By analyzing some key enterprises and research institutes, we can understand the current technical hot spots on the market and provide references for the development of controlled release fertilizers in China.