To evaluate the carbon emission issue during the production process of needle-punched geotextiles, S factory was taken as the research subject. A carbon footprint model for the production process of needle-punched geotextiles was constructed based on the life cycle assessment (LCA) method to calculate the carbon emissions in stages such as raw material usage, raw material transportation, production manufacturing, and auxiliary equipment operation. Through local sensitivity analysis and global sensitivity analysis, the key influencing factors of the carbon footprint were identified. Combined with the uncertainty assessment results of the Monte Carlo simulation, an optimized path for energy conservation and emission reduction was ultimately proposed. The research results show that for every ton of needle-punched geotextiles produced by S factory, the total carbon footprint of the production process is 4 374.61 kgCO2, with the highest proportion of raw material usage stage, which is the core focus of carbon reduction. The Monte Carlo simulation results also verify that the carbon footprint falls within the 95% confidence interval, confirming the reliability of the model results. The research findings can provide scientific basis for the carbon emission management of needle-punched geotextile production enterprises and facilitate the green and low-carbon transformation of the industry.