Lintong-Chang＇an　fracture　zone　is　an　important　active　fault　controlling　the　Lishan　uplift　and　Xi＇an　depression　in　the　Weihe　Basin.　It　consists　of　two　secondary　faults,　and　is　divided　into　three　sections　of　northeastern,　central　and　southwestern　by　Bahe　and　Zaohe.　Predecessors　have　two　kinds　of　different　understanding　of　fault　activity　since　the　Late　Pleistocene.　In　order　to　determine　the　activity　of　the　Lintong-Chang＇an　fracture　zone　since　the　Late　Pleistocene,　the　loess　S1,　L1S　and　S0　are　selected　to　be　the　marker　and　the　timescale　to　determine　the　fault　vertical　displacement　in　the　study.　By　means　of　DEM　geomorphological　analysis　and　the　fault　outcrop　survey,　and　combined　with　the　crustal　deformation　data,　the　research　result　shows　that　the　activity　of　the　northeastern　section　is　the　strongest　in　the　Lintong-Chang＇an　fracture　zone　since　the　Late　Pleistocene,　the　central　section　is　the　second　and　the　southwestern　section　is　the　weakest.　It　is　consistent　with　the　geomorphological　differences　shown　by　DEM　in　hangwall　and　footwall　of　the　modern　fault　zone.