目的 在兼顾环境影响和经济效益的基础上，运用科学的分析手段为烟草商业物流可降解薄膜优选及包装工艺升级提供决策参考。方法 本文从可降解薄膜的力学性能及其包装方式入手，以生命周期评价法所确定的可降解薄膜环境影响潜值和相关经济指标作为基础数据，运用基于松弛测度的非径向、非角度的数据包络分析模型(SBM-DEA)开展烟草商业物流可降解薄膜包装的环境绩效评价及冗余度分析。结果 根据8种可降解薄膜的力学性能确定了3种包装方式，不同包装薄膜的生命周期环境影响潜能总值从大到小依次为C、D、E、LDPE、A、B、G、F、H。根据环境绩效测算所确定的可降解薄膜包装优选方案为A+缠绕包装I和G+缠绕包装I。结论 生命周期环境影响评价有助于全面分析可降解薄膜的环境友好性，可降解薄膜的缠绕包装具有突出的环境绩效优势，工艺升级和包装效率改进是提升烟草商业物流可降解薄膜包装环境绩效的入手点。

The work aims to employ scientific analysis methods to provide decision-making reference for degradable films selection and packaging process upgradation in tobacco commercial logistics with consideration to environmental impact and economic benefits. Based on the matching of film mechanical properties and packaging ways, the environmental performance measurement and redundancy analysis of degradable film packaging were carried out with a non-radial and non-angular SBM-DEA model based on relaxation measurement, using the environmental impact potential via life cycle inventory and related economic indicators as basic data. The results indicated that three packing manners were determined for eight kinds of degradable films according to mechanical properties. The total environmental impact potential of different packaging films followed a descending order of C, D, E, LDPE, A, B, G, F and H. In addition, the wrapping packaging I of film A and wrapping packaging I of film G were preferable with effective environmental performance. It is concluded that life cycle environmental impact assessment contributes to a comprehensive analysis of the environmental friendliness of degradable films. Wrapping packaging of degradable films has outstanding environmental performance advantages. The upgrading of packing technology and the enhancement of packaging efficiency are the starting points to improve environmental performance of degradable film packaging.