A virtual space communication system includes a virtual space management computer which manages information regarding a virtual space, a plurality of client computers each of which receives information regarding the virtual space from the virtual space management computer and generates communication information used in the virtual space, each of the plurality of client computers having an object state changing unit for changing a state of an object included in the virtual space, and a communication management computer which intermediates communications regarding communication information and information representing change of a state of an object among the plurality of client computers sharing the virtual space. The virtual space communication system further comprises a changing unit for, when a state of an object is changed in one of the plurality of client computers, changing information of the virtual space managed by the virtual space management computer based on a changed state of the object.