This paper analyzed the composition of toner cartridges and ink cartridges,which are the key components of the waste office equipment.Evaluations of the toner cartridges and ink cartridges treatment technologies were conducted by adopting Analytic Hierarchy Process (AHP),which included evaluation model construction,experts scoring,and evaluation.The results showed that manual dismantling was the most suitable technology for the waste treatment of toner cartridges and ink cartridges.Additionally,the environmental factor and economic benefit presented higher weights during the evaluation process.The environmental impact of the toner cartridges and ink cartridges disposal processes were assessed through the life cycle assessment (LCA) method,employing the SimPro software and Eco-indicator 99method.It was observed that an environmental benefit of 535.2mPt could be obtained during the manual dismantling process of toner cartridges,which was higher than their environmental impact (27.3mPt).The environmental benefits mainly came from the recycling of plastics,metals and magnetic materials in toner cartridges,and the heat recovery from toner incineration.The toner cartridge dismantling process and the disposal of hazardous waste generated,could have synergistic environmental impacts.Ink cartridge manual dismantling process resulted in environmental benefits of 271.0mPt and environmental impacts of 10.8mPt.Environmental benefits mainly came from plastics recycling.The environmental impacts were caused by the consumption of water and washing reagents for ink cartridges cleaning,and electricity for housing plastics crushing.From the point of view of these three indicators-human health,ecosystem quality and resources,the most significant environmental benefit brought by the toner cartridge manual dismantling process was due to reduction in the threats to human health by 68.4%.Meanwhile,the most significant environmental benefit by ink cartridges manual dismantling was 84.1% conservation resources.