Using Chinas provincelevel dynamic panel data from 2002 to 2013 and SYSGMM method, this paper empirically analyses the consumption effects of ecommerce economy development. We find that the development of ecommerce economy increases the size of the overall consumption significantly, and promotes the spatial agglomeration of crossregional consumption. Besides, it expands the urbanrural consumption gap. The mechanism is ecommerce economy development widens income gap between the urban and rural residents. The three effects are more obvious in the central and western regions in China. Compared with the previous research, this article more systematically examines the consumption effects of ecommerce economy development, especially consumption pooling effect and consumption gap effect. Conclusion of this paper offers another channel to release the consumption potential on the background of Chinas New Normal. By developing ecommerce economy, it provides empirical evidence for building regional ecommerce consumption cluster center, and indicates the development direction for ecommerce economy, which is to pay more attention to promote a fair share of ecommerce economy earnings between the urban and rural residents in order to narrow the consumption gap.