Industrial countries are beginning to face one of the consequences of rapid development that has occurred in the last decade. Wide diffusion of consumer goods and a short age of the product life-cycle have caused an increasing quantity of used products to be discarded. The most evident effect is that the landfill capacity is being used up. In addition, some of the materials discarded into the landfills contain toxic chemicals that can leak out and contaminate the soil and groundwater. To solve this problem, a system technology in recycling is imperative. This paper proposed a recycling model based on the disassembly tree. A disassembly tree represents the assembly relationship between components of end-of-life (EOL) products. Three major modules are included in the recycling model: (1) disassembly sequences generation, (2) recycling cost calculation and, (3) environmental impact indication. Thus follows the illustration of PC as examples.