This　paper　introduces　a　digital　current　regulator　with　a　dynamic　decoupling　scheme　for　three-phase　AC　motor　drives　that　operate　under　low　sampling　to　fundamental　frequency　ratios　for　high-speed　motor　drives.　Cross-coupling　terms　introduced　by　the　motor　and　inverter　models　in　synchronous-frame　are　the　main　cause　of　poor　dynamic　performances.　These　disturbances　cannot　be　mitigated　due　to　the　bandwidth　frequency　limitation　under　high-speed　operations.　This　paper　introduces　a　decoupling　matrix　emulated　in　the　digital　domain　aiming　to　dynamically　cancel　these　effects.　In　addition,　two　compensation　methods　are　proposed　to　reduce　the　discretization　due　to　low　sampling　ratio.　The　proposed　approach　allows　the　dynamic　cancellation　of　the　plant　poles　that　change　their　location　depending　on　the　synchronous　speed.　The　time　delay　effect　of　the　plant　is　compensated　using　the　phase-lead　compensation　method.　Simulation　results　discussed　in　this　paper　demonstrated　good　decoupling　performances　with　improved　dynamic　responses.　©　2023　IEEE.