According　to　multi-body　theory,　establish　the　precision　horizontal　machining　center＇s　characteristic　matrix　and　geometric　accuracy　model,　and　then　establish　the　relation　model　between　thermal　error　and　collected　temperature　according　to　the　five　line　measurement　method　and　multiple　linear　regression　method,　which　will　be　studied　next.　After　the　superposition　of　geometric　accuracy　model　and　thermal　error　model,　getting　precision　horizontal　machining　center　integrated　dynamic　accuracy　model.　©　(2013)　Trans　Tech　Publications,　Switzerland.