In recent years, with the advancement of society, motor vehicles have become an indispensable mode of transportation. To properly recycle and handle these vehicles, the government has established a waste vehicle recycling system. This includes tax reduction policies to accelerate the replacement of old vehicles by the public, and the former Environmental Protection Agency actively establishing a waste vehicle recycling system to ensure that the recycling process complies with regulations. The current waste vehicle recycling process includes dismantling, recycling tires, lead-acid batteries, lubricating oil, etc., and selling valuable items to the second-hand parts market, with the rest being handled by the crushing plant. However, greenhouse gases emitted during the dismantling of vehicles and end-of-life disposal methods still need to address climate change trends. This project refers to the ISO 14064 and 14067 standards, and actually checks the greenhouse gas emissions and carbon footprint of waste vehicle recyclers. The scrapped vehicle dismantling process is classified, and the carbon emission value is estimated to explore the carbon reduction benefits. Further evaluate the carbon emissions during the dismantling process of waste vehicles, find out the hot spots of carbon emissions, and propose solutions. The project results show that the carbon emissions of each waste vehicle transportation, dismantling, and post-transportation are about 176.9 kg-CO2e, of which the refrigerant dissipation accounts for the largest proportion of 81.97%. The carbon emissions of second-hand parts are lower than those of new ones. Taking the engine and transmission shaft as an example, the unit dismantling carbon emission is about 17 kg-CO2e, which is about 1/34 of the carbon emission of new products. It shows that the second-hand parts market has a positive effect on carbon reduction, and the MFCA analysis results have profit space in the waste iron part, and the combined analysis of material flow and cash flow has its positive benefits.

Greenhouse Gas Check, Carbon Footprint, Waste Car Dismantling.