A drip irrigation emitter flow channel structural design method and a fractal flow channel drip irrigation emitter product therefor. The method comprehensively considers within a design process the hydraulic performance and anti-blocking performance of a drip irrigation emitter, and mainly comprises stages such as simulation method establishment, flow channel configuration selection, structural parameter determination and flow channel boundary optimisation. An optimal flow channel configuration and a structural parameter value range of a drip irrigation emitter flow channel are determined via an optimal value simulation model, thereby defining a drip irrigation emitter primary prototype structural design method. The present invention provides a drip irrigation emitter flow channel boundary swirl washing wall optimal design method, determines a boundary optimal design control threshold range, and determines a secondary fine structural design method. Sheet-type and cylindrical-type fractal flow channel emitter products having very high hydraulic performance and anti-blocking performance are designed by applying the present method in combination with fractal geometry theory.
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