[Objective] To provide technical reference for the construction of sponge community in northern city, the paper analyzed the effects of economic and ecological benefits from sponge community construction.[Methods] A residential district was studied to support the sponge community construction in Tongzhou District of Beijing. To examine the benefits of rainwater storage facilities, the paper analyzed the consequent effects of several measures in the case of sponge community construction, e.g., increasing green roof, concaving green land and constructing rainwater storage tank. The effects, mainly referring to the amounts of excluding rainwater, saving water, groundwater recharge, reducing social loss for eliminating pollution, saving electricity, and the amounts of carbon fixation and oxygen release were compared to the ones of no measures taken.[Results] The total benefit of the increasing amount of per unit area was 38 566 yuan/(hm²·a) after adding rainwater storage facilities. The amount of saving water was 208 m³/(hm²·a). The amount of saving electricity was 145 (kW·h)/(hm²·a). The increasing amount of groundwater recharge was 281 m³/(hm²·a). The increasing amount of carbon fixation was 0.02 t/(hm²·a). The increasing amount of oxygen release was 0.01 m³/(hm²·a).[Conclusion] It is worth promoting and advocating to add the rainwater storage facilities for its obvious economic and ecological benefits in terms of water saving, electricity saving and sewage interception.