To advance the low-carbon emission reduction process in the home appliance industry, a carbon footprint assessment was conducted on polystyrene (EPS) packaging used for home appliances, thereby exploring optimization strategies for EPS packaging solutions. Based on life cycle assessment (LCA) theory and employing life cycle inventory analysis, a systematic statistics and analysis was performed on carbon emissions across EPS stages including raw material acquisition, production, packaging and sorting, transportation, and recycling/disposal. Research findings indicate that the total carbon emission for EPS packaging of cooking appliances is 6.7824 kg CO2eq, with an LCA carbon footprint of 8.4152 kg CO2eq. Further analysis reveals that the raw material production stage contributes 53.3% to the global warming potential within the EPS packaging carbon footprint, making this phase critical for achieving carbon reduction. Optimizing the energy structure, significantly improving EPS recycling rates, and refining packaging designs represent vital pathways toward achieving carbon peak and carbon neutrality goals.