Based　on　the　survey　of　four-leg　intersections　with　unsignalized　control,　this　paper　sets　up　crash　prediction　models.　Modeling　process　improves　on　the　measure　of　choosing　independent　variables.　The　paper　discusses　the　design　and　traffic　factors＇　influences　on　accident　guidelines,　and　establishes　prediction　models.　Finally,　the　paper　uses　relevant　probability　models　and　analyzes　their　precision　in　order　to　validate　the　models＇　applicability.　Copyright　ASCE　2007.