Farmland irrigation system

The invention discloses a farmland irrigation system. The farmland irrigation system comprises a solar power generation module, a storage battery, a main controller, a water pump, a water seepage pipe, a spray pipe and a humidity sensor. The solar power generation module is electrically connected with the storage battery, and the storage battery stores electric energy generated by the solar powergeneration module. The storage battery and the main controller provide electric power for the entire system. The main controller is electrically connected with the water pump and the humidity sensor.The humidity sensor is disposed under the ground of farmland. The water seepage pipe is buried under the ground of the farmland, and the spray pipe stands on the ground of the farmland. The water pumpis connected with a water source through a pipe, and is also connected with the water seepage pipe and the spray pipe through pipes. The farmland irrigation system has the advantages that automatic and precise farmland irrigat