The invention relates to an irrigation facility, and especially relates to a light thin-wall micro-irrigation belt full-mating device suitable to be used in regions in short of water and electricity. The device comprises a water pump. The device is characterized in that the water pump is a hand-cranking topological pump. The water inlet of the topological pump is connected with a water source. The water outlet of the topological pump is connected with a water capsule. The water outlet of the water capsule is connected with a thin-wall micro-irrigation belt. The thin-wall micro-irrigation belt is provided with a water outlet. The other end of the thin-wall micro-irrigation belt is sealed. The device is simple in structure, convenient in operation, low in price, reliable in operation, light in weight, and convenient in carrying, and the device can use manual work as power. The device is suitable to be used for sprinkling irrigation and micro-irrigation in regions in short of water without power supplies. The device is also suitable to be used for small greenbelts in a city, and regions which are usually irrigated by moving sprinkling trucks.