On　the　path　of　seeking　sustainable　development,　ecological　decoupling　is　usually　selected　to　measure　the　achievements　of　climate　governance.　Based　on　the　theoretical　assumption　arising　from　solution　to　endogenous　growth　model　and　using　the　panel　data　of　50　countries　during　the　period　of　2004-2016,　this　paper　establishes　a　threshold　model　to　quantify　effects　of　industrial　structure,　income,　urbanization,　and　other　production　factors　on　decoupling　of　economic　growth　from　energy　consumption　(decoupling)　under　the　constraint　of　technological　level.　The　results　show　that　there　is　strong　decoupling　in　developed　countries,　while　weak　and　even　coupling　in　developing　countries.　The　impact　of　industrial　structure　and　income　on　decoupling　has　changed　in　direction　and　is　characterized　by　inverted　U-shaped　curve　under　a　single　technology　threshold.　In　the　low-tech　regime,　income　and　industry　structure　deepen　decoupling,　while　it　weaken　in　the　high-tech　regime.　The　substitution　effect　from　renewable　energy　rather　than　production　factors　is　conducive　to　decoupling,　not　restricted　by　the　technological　level.　The　robust　driving　force　of　urbanization　on　decoupling　strengthens　with　technological　progress.　Deepening　decoupling　should　be　devoted　to　exploring　the　potential　of　driving　factors　and　refraining　from　the　dragging　effects　of　resisting　force.