The invention discloses a rainwater seepage purification and storage system inside landscape greens. The rainwater seepage purification and storage system is characterized by comprising a water collection pipe network system (1), a water filtering system and a water supplying system; the water collection pipe network system (1) is communicated with the water filtering system, and the water filtering system is communicated with the water supplying system. According to the rainwater seepage purification and storage system inside the landscape greens, rainwater collection, filtration and storageare integrated as a whole system, the rainwater in the city greens is purified and recycled, the utilization rate of water resources is increased, and an energy-saving, low-carbon and environment-friendly system technology is achieved; the rainwater seepage purification and storage system inside the landscape greens has high environment adaptability, high smart controllability and a resource saving function, and large ecological benefits, social benefits and economic benefits are achieved.