Abstract: For the strike chain in the implementation of ultra-long-range interception of such combat modes, weapon systems cannot complete information guarantee from self-closed loop. On the basis of reference to the development of US and Russian ultralong-range precision strike operations, the technical requirements of early-warning information support for ultra-long-range precision strike chain are analyzed, the connotation and primary mission of early-warning information support systems are proposed. Finally, the key technologies of early-warning information support for ultra-long-range strike chain are abstracted and discussed, including the general technology, adaptive collaborative control technology, distributed situational awareness technology and so on. Some technical approaches are tried to provide certain application references for the development of the long-range precision strike system.