Considering the application limitations of the current grouping consistency protocol,we proposed a fuzzy C-mean clustering algorithm and a new kind of grouping-consistency algorithm based on the information interaction between the groups.Firstly,the UAV vector composed of multiple combat factors is established,and separating/grouping of UAV formation is implemented based on the fuzzy C-mean clustering algorithm.Then,to overcome the deficiency of existing grouping-consistency algorithms,a new kind of grouping-consistency protocol considering the information interaction between groups is presented,and the corresponding criterion is proved based on the theory of stability and matrix.The simulation result proved the correctness of the criterion and indicated that the proposed grouping method and consistency protocol can effectively implement separating/grouping of the UAV formation and guarantee the grouping consistency.