Abstract: With the deepening of the quantum cryptography field research,video conference,networks games,stock trading and other dynamic group communication models put forward application requirements to quantum group key．In order to service these applications well,on the basis of analyzing the traditional group key manage-ment scheme,present a two layers of packet distributed quantum group key management model,design the quan-tum group key service agreement under this model,focus on the initialization phase of the agreement．Compared with several kinds of classic group key management scheme,this scheme’s efficiency is higher in group key gen-eration and sharing,has certain practical significance.

Key words: Group key,Quantum key distribution(QKD),Buffer pool,Initialization