The invention discloses a water irrigation filtering system with a flow regulation function. The water irrigation filtering system comprises a spiral filter nozzle, wherein the spiral filter nozzle comprises a water filtering tank and a spiral pipeline, and the water filtering tank is arranged at the bottom of the spiral pipeline, namely, on one side close to the ground of the spiral pipeline; the water filtering tank comprises a precipitation tank, a filter material and an overflow opening, the filter material is arranged at the top of the precipitation tank, the overflow opening is an opening formed in one side of the top of the water filtering tank, and meanwhile the overflow opening is fixedly connected with an aqueduct; the precipitation tank is in space communication with the filter material, the filter material is in space communication with the overflow opening, and the overflow opening is in space communication with the spiral pipeline. The water irrigation filtering system with the flow regulation function disclosed by the invention has the advantages of stable performance, reliability, wider used water source, better filtering effect, ability in finishing a cleaning process under the situation without interrupting water inlet and wide application to water-saving irrigation systems.