The　basic　assumptions　of　existing　approaches　are　that　the　pipelines　fail　in　tension　crack　of　pipe　for　studies　on　the　best　crossing　angle　between　pipeline　and　fault,　but　they　do　not　consider　the　cases　of　pipeline　failures　induced　by　the　compression　crack　or　buckling　of　pipe.　In　this　paper,　some　case　studies　are　made　by　the　finite　element　method　with　shell　model　of　pipe,　in　which　the　different　material　behaviors　of　pipe,　dimensions　of　pipe　and　properties　of　surrounding　soils　are　taken　into　consideration.　Based　on　the　results　of　case　studies,　the　failure　problems　of　pipelines　are　discussed　under　different　rules　of　failure　control　of　pipes　which　are　the　rules　of　only　controlling　the　tension　failure　of　pipe　or　controlling　both　the　tension　failure　and　the　compression　failure　of　pipe,　and　the　influences　of　the　different　rules　of　failure　control　are　analyzed　on　the　best　crossing　angle　between　pipeline　and　fault.　The　opinions　are　obtained　that　the　rule　of　failure　control　is　an　important　factor　to　bring　out　the　best　crossing　angle　between　pipeline　and　fault,　and　the　best　crossing　angle　should　be　about　70　degrees　under　the　rules　of　controlling　both　the　tension　failure　and　the　compression　failure　of　pipe.