The paper analyzes the expressway maintenance management system and repairing tasks,identifies the content of the management sys-tem,investigates the workloads of respective layers,and explores the maintenance cost of different layers,so it is meaningful to improve and reg-ulate the maintenance cost and asset management levels.%分析了高速公路养护管理系统与养护任务，明确了高速公路养护管理的内容，并对各层次养护工作量进行了调查研究，探讨了各层次各类别的养护费用，对提高和规范高速公路养护技术与费用管理水平具有重要意义。
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