The invention discloses a water bag for courtyard fruit-and-vegetable infiltrating irrigation. The water bag is characterized in that the water bag is in a long-strip shape or semi-circle, whole sealing is not leaked, and water delivering pipe joints and a plurality of infiltrating irrigation pipe joints are arranged on the water bag. The water bag has the advantages that as the water bag is soft, the water bag is convenient to transport, carry and install and simplified, maintenance is relaxed, the maintenance management cost can be greatly reduced, land resources are saved, and the water bag is quite convenient to use, can be widely applied to a greenhouse and courtyard fruit-and-vegetable planting, and can be used for both the small family field and the large engineering field; as the water bag is thin, multiple pieces of sunshine can be absorbed, the water temperature is improved, warm water irrigation is achieved, and crop growth is facilitate; as the inter-row portions of crops are covered with the water bag, the water bag also has the mulching film covering function, the soil temperature can be improved, soil moisture evaporation is reduced, weed growth is inhibited, and diseases and pests are controlled.