The invention discloses a landscape rainwater collection system, which comprises a reservoir and a landscape pond, wherein the reservoir is directly connected to the landscape pond by virtue of a water pipe; a water storage unit is connected to the reservoir; the water storage unit contains roof rainwater and ground rainwater; the roof rainwater and the ground rainwater flow to the reservior by virtue of a water purifying device; a landscape water recycling device is connected to the landscape pond; and the landscape pond is connected to the reservoir by virtue of the landscape water recycling device. According to the landscape rainwater collection system provided by the technical scheme, the roof rainwater and the ground rainwater are purified by virtue of the water purifying device and are stored in the reservoir, and finally, the processed roof rainwater and ground rainwater are applied to afforestation irrigation and landscape pond water; the landscape pond water, after being purified, can be recycled; with the application of the system, the rainwater is collected and utilized, and the used landscape water is recycled, so that water resource is saved; and meanwhile, pressure of a municipal running water system is also greatly reduced.