Annotation: The experience of carrying out an antiterrorist operation on the territory of Donetsk and Lugansk oblasts shows, that the current level of noise immunity of multi-antenna systems of military radio communication does not meet the modern requirements put forward for their functioning. Most of the available publications describe only separate direction for increasing the noise immunity of multi-antenna systems of military radio communication, but this information is not systematized and does not create a generalized view on possible options for increasing the noise immunity of these systems. As a result of the research, the main methods of increasing the noise immunity of multi-antenna systems of military radio communication have been determined. It is established, that most of the theoretical achievements of known authors are aimed at developing optimal methods of space-time coding, frequency adaptation and creation (selection) of highly effective signal-code structures. This article uses the basic provisions of the theory of noise immunity, the theory of antennas, noise immunity coding, signal-code structures, and others. According to the results of the study, it is possible to say, that multi-antenna systems of military radio communication are multi-level spatial-frequency-time signal-code designs. Taking into account, that the devices of electronic warfare increase the level of their own technological perfection from multi-antennas of military radio communication, complex use mechanisms to increase the noise immunity at each level is required and significant improvement of existing models and methods of increasing the noise immunity of multi-antenna systems of military radio communication is required.