To reduce environmental damage, the properties of environmental issues must be understood. Most previous research has performed relevant assessment either qualitatively or quantitatively. This paper provides a new comprehensive evaluative framework to integrate these two types of approaches. Three methods are combined: (1) life cycle assessment (LCA), a quantitative method, to assess environmental loading, (2) analytic hierarchy process (AHP), a qualitative method, to obtain opinions from experts, and (3) cluster analysis to integrate the results of the former two methods. This new framework could provide integrated information and avoid a bias towards either qualitative or quantitative approach. To present the process of this new evaluative framework, packaging materials are selected as the case study in this paper.