The present invention discloses a water storage system, comprising: a water storage brick, a water storage stick and a water storage unit, wherein the water storage stick and the water storage brick are made of construction waste, so as to realize recycling of the construction waste and achieve the effects of protecting the environment and saving resources. The water storage unit uses a mixture of the construction waste, a water retaining agent and an organic or inorganic fertilizer as a culture substrate, so as to retain water and increase the fertilizer. Because the resource utilization of the construction waste is realized, a good environmental protection effect can be achieved. The present invention provides a water storage system and a manufacturing method therefor, so as to effectively solve the problem of difficult water supply for greening and tree planting in arid and water shortage regions, benefit the improvement on an ecological environment, increase a vegetation coverage rate and bring important significance to resource utilization of rainwater and construction of the ecological environment.
