On　the　basis　of　picking　up　the　structural　feature　parameters　of　labyrinth　channels　of　drip　irrigation　emitters,　the　hydraulics　performance　experiments　on　integral　labyrinth　emitters　were　performed　in　order　to　summarize　the　design　principle　for　labyrinth　channels.　The　integral　labyrinth　emitters　were　made　by　means　of　utilizing　rapid　prototyping　technique.　Using　multivariable　linear　regression,　formulas　of　pressure　versus　flow　and　regression　plots　for　different　emitters　were　induced.　The　formulas　of　flow　versus　structural　feature　parameters　were　summarized　based　on　the　trapezoid　unit,　and　those　regression　formulas　were　verified　through　experiments.　The　relationships　among　flow,　pressure　and　cross-section　dimension　of　this　labyrinth　channel　were　established.　Furthermore,　the　effect　of　channel　fabrication　error　on　the　flow　rate　of　emitters　was　analyzed,　which　provided　a　basis　for　parameterized　structural　design　and　precision　control　in　the　fabrication　of　emitters.