Social, economic and environment is a composite dynamic system."Mass production, and mass consumption, and mass discarded waste" has been a popular phenomenon in modern society, especially in developing countries. Literatures have indicated consumption is a driving factor of environmental loads but only few give quantitative results. In this study, individual's waste generation by waste component category is simulated via simultaneous equation system regarding for the consumption structure by a case study of Taiwan. Firstly, precise estimation models are developed, and analysis results not only identify the household waste generation loads of consumer's behavior explicitly, but also provide an analytic framework to evaluate performance of relevant policies.