With　the　progress　of　science　and　technology,　existing　methods　of　surveying　and　safety　auditing　have　been　difficult　to　meet　the　increasing　demands　of　people,　so　a　new　method　is　needed.　First,　by　comparing　and　analyzing　the　advantages　and　disadvantages　of　different　mapping　techniques,　we　finally　find　that　under　the　different　demand　conditions,　the　digital　mapping　technology　which　uses　the　UAV　aerial　mapping,　total　station,　and　3D　LIDAR　on　vehicle　in　collaboration　with　the　GPS　is　more　advanced,　accurate,　and　practical.　Then,　with　the　method　of　HintCAD　in　collaboration　with　3D　Max　to　realize　the　digital　visualization　of　road　design,　the　designer　can　analyze　the　road　design　in　3D.　Finally,　a　driving　simulation　is　based　on　operating　speed　and　human　factors　to　audit　the　safety　of　road　design,　which　can　offer　a　truly　people-oriented　safety　audit　from　the　perspective　of　road　users.