Coordinated multi-point(Co MP) transmission has been regarded as a fascinating technology for4 G wireless communication systems. In this paper, the Co MP dynamic clustering problem is studied, a Friends algorithm(F-A) is proposed based on the procedure of making friends in human society, and then a dynamic clustering scheme is proposed based on F-A. The mutual interference among cells of the network is considerate in this algorithm, which can be obtained by CSI feedback.Compared to Traversal search(T-S) algorithm, the proposed algorithm has lower computational complexity, and the performance is almost equal. Simulation results show the proposed scheme is effective for dynamic clustering. Coordinated multi-point (Co MP) transmission has been regarded as a fascinating technology for 4G wireless communication systems. In this paper, the Co MP dynamic clustering problem is studied, a Friends algorithm (FA) is proposed based on the procedure of making friends in human society, and then a dynamic clustering scheme is proposed based on FA. The mutual interference among cells of the network is considerate in this algorithm, which can be obtained by CSI feedback. Compared to Traversal search (TS) algorithm, the proposed algorithm has lower computational complexity, and the performance is almost equal. Simulation results show the proposed scheme is effective for dynamic clustering.