The　dual-driving　feed　system　is　widely　used　in　highspeed/high-precision　CNC　machine　tools　due　to　its　high　rigidity.　However,　when　the　column　moves　along　the　beam,　the　load　parameters　of　the　dual-driving　two　axes　will　change,　which　results　in　non-synchronous　error　and　affects　the　machining　accuracy.　For　this　problem,　an　adaptive　synchronization　tracking　control　(ASTC)　strategy　of　dual-driving　feed　system　for　gantry-type　machine　tool　is　proposed.　In　this　control　frame,　active　disturbance　rejection　controller　(ADRC)　evaluates　and　compensates　the　influence　of　the　internal　and　external　disturbances,　realizing　the　decoupling　control　of　the　dual-driving　feed　system.　Besides,　the　equivalent　load　masses　of　the　dual-driving　two　axes　can　be　obtained　according　to　the　position　of　the　column　on　the　beam,　and　the　ASTC　automatically　tunes　the　controller　gains　of　each　axis　according　to　the　corresponding　load　mass.　The　simulation　results　show　that　the　proposed　ASTC　has　better　tracking　performance　and　dual-driving　synchronization　performance.　©　2017　IEEE.