The invention discloses an environment-friendly automatic 
water storage irrigation system for gardens, and relates to the technical field of garden 
irrigation. The environment-friendly automatic 
water storage irrigation system comprises a reservoir, the top end of the interior of the reservoir is fixedly connected with a water pump, the output end of the water pump is fixedly connected with an irrigation 
pipe, and the top end of the irrigation 
pipe is fixedly connected with a first irrigation 
nozzle; and the surface of the irrigation 
pipe is fixedly connected with a 
soil water content detection device, the 
soil water content detection device is in 
signal connection with the water pump, and the surface of the irrigation pipe is fixedly connected with a storage box. According to the environment-friendly automatic 
water storage irrigation 
system, the 
soil water content detection device controls starting and stopping of the water pump, irrigation is automatically finished, irrigation is automatically stopped after the 
irrigation water is sufficient, waste caused by excessive 
irrigation water is avoided, the tedious manual inspection step is omitted, and the irrigation cost is reduced; and when plants 
lack water, collected rainwater can be irrigated to the roots of the plants, the total water needed by irrigation is reduced, and 
water resources are saved.