SimaPro software and the Ecoinvent database were used to model the life cycle of pulp molding gift box production, and the EF 3.0 method was used to analyze the environmental impacts of life cycle, to quantify and identify the environmental footprints of the production process and its contributing processes, and to assess and explain its environmental impacts. The results show that the climate change impacts caused by the production of 10 000 sets of pulp molding gift boxes is 7609.27 kg CO2 eq., with 7591.24 kg CO2 eq. caused by fossil resources. Climate change, fossil resource depletion, particulate emissions, acidification, and photochemical ozone formation are the main environmental impact categories in the production process of pulp molding gift boxes, with a cumulative contribution of more than 80% of the overall environmental impacts, among which, the thermo-compression shaping process and its electrical energy consumption are the main causes of environmental problems. Through sensitivity analysis of the results, reducing the amount of electrical energy consumed in the production process or using cleaner energy alternatives could reduce the carbon footprint by up to about 95% and lower the overall environmental impact.