Abstract: Life cycle costing (LCC) and life cycle assessment (LCA) are two key supporting tools for cleaner chemical processing industry. In this papper，the concept of environmental cost is introduced. An attempt is made to interpret the outcomes of a LCA in terms of environmental costs. This attempt ensures the environmental accountability of chemical products in LCC while LCA ensures their eco-friendly nature. Basing on this assume，the conceptual framework and implementation steps of product design are brought forward. This model incorporates the outcomes of LCA into the LCC practice，which provides useful information for rational chemical products design.

摘要： 生命周期成本分析(LCC) 和生命周期评价(LCA)是实现化工产品设计和过程清洁生产的两大支持工具。引入环境成本概念，分析了生命周期成本的构成，重点分析生命周期成本分析法的步骤，并提出采用LCC和LCA进行化工产品设计的概念框架及实施步骤，为化工产品设计提供科学定量的决策依据。