In　order　to　research　the　electrical　discharge　machining（EDM）　process　of　the　dual-linear　motors　driving　system,　in　this　paper,　a　dual-linear　motor　driving　spindle　structure　with　balance　cylinder　is　proposed,　in　which　the　cross-coupling　control　algorithm　is　used　to　control　the　dual-linear　motors.This　structure　and　control　method　can　improve　the　thermal　balance　of　the　spindle,　and　availably　reduce　the　influence　of　the　motor　heating　on　the　accuracy.　In　this　paper,　the　method　of　simulation　analysis　and　positioning　detection　is　applied　to　verify　the　effectiveness　of　the　design.　Furthermore,　the　machining　ability　of　dual-linear　motors　EDM　and　the　ball-screw　EDM　spindle　are　compared　through　efficiency　discharging　process　test　and　mirror　process　test.　By　the　comparative　results,　the　dual-linear　motors　driving　technique　in　EDM　filed　has　higher　machining　efficiency.　The　tests　results　show　that　the　EDM　database　of　the　ball-screw　EDM　spindle　can　be　replaced　by　dual-linear　motors　EDM　spindle　seamlessly.　So　the　dual-linear　motors　driving　technique　is　suitable　for　the　EDM　process.　©　2020　The　Authors.　Published　by　Elsevier　B.V.