【Purpose/significance】In order to improve the efficiency of the system and the synergistic effect of the system,the e-commerce value ecosystem must be coordinated.【Method/process】This paper constructs an e-commerce synergistic ecosystem, and develops synergistic factors from synergistic elements, synergistic structures and synergistic mechanisms.There are five collaborative elements,the value formation of synergetic management synergy, knowledge collaboration, enterprise structure, user cooperative coordination and information coordination. The collaborative structure are established which can achieve the "entity elements of the four levels ofthree platforms" and virtual information elements combination.【Result/conclusion】The system runs to form a " four phase and three-phase" collaborative framework and co-evolution mechanism, at last we put forward some management suggestions.