At present,human-machine cooperation based on multiple agents is one of the important forms of humanmachine relationship,where human beings and machines as agents are able to communicate,collaborate and cooperate.In order to achieve more effective and higher quality human-machine cooperation,a kind of collective motility should be constructed.The possibility of such a construct is due to that human-machine cooperation meets three conditions,namely,collective action,collective intention and common outcome.The construct of collective motility in their cooperation consists of two dimensions:a cognitive dimension and a behavioral dimension.In their cooperation,respectively,the former draws on the theories of "we-mode" and " shared intention" to intrinsically explain,and the latter observes and simulates the external actions through the joint action model and the dependency theory to construct,the collective motility.