在现代数字化战争中，数据链可以提供各种实时或近实时的作战信息，将指挥控制系统、计算机及各种数据终端 组成有机的无缝网络系统，实现作战信息资源共享，是提高战斗力的倍增器。介绍_，战术数据链的概念及组成，并分析其功 能、战术特点和分类标准。从系统组成、技术特点和装备情况等方面，着重介绍了外军常用的数据链，并进行了分析比较。在此基础上，对数据链未来的发展趋势进行了探讨-The war of the modern digital data link can provide a variety of real-time or near real-time combat information, command and control systems, computers and various data terminals composed of organic, seamless network system, to achieve operational sharing of information resources to improve the combat effectiveness of doublingdevice. _, Introduced the concept of tactical data link and composition and to analyze its function, the tactical characteristics and classification criteria. From the system, technical features and equipment, etc., focusing on foreign armies used data link, and were analyzed and compared. On this basis, discussed the future development trend of the data chain