The present invention relates to a general distributed visual simulating system based on HLA and a realizing method thereof. The method is managed by multithread which comprises three threads: a main control thread, a network intercepting thread and a visual representing thread. The method specially comprises the following steps: actuating the main control thread, and actuating the network intercepting thread after obtaining the added federal information; intercepting the added federal information by the network intercepting thread, when object class and object class property, alternative class and alternative class parameter are received, executing mistake detection, and analyzing to representing command for storing into a representing command buffer alignment; actuating the visible representing thread, searching in the representing command buffer alignment, taking out the representing command to be processed, calling a corresponding entity, executing the representing command; and when the representing command buffer alignment is empty, executing the special representing effect of entity and updating the scene. The system of the invention has versatility, is not required to recompile network interface, and furthermore does not generate the phenomena of content distortion, jumping screen, etc. which are caused by data lost.