Abstract: On the basis of the Investigation and analysis of different family household ecosystems, the dominance and stability indexes of complcxed systems were introduced in four typos of family household ecosystem to evaluate quantitatively the structure and to analyze and compare energy input-output as well as economic efficiencies. The results showed that the dominance and stability indexes could effectively quantify the equipollence and stability of ecosystems and could be used as main parameters to cvalutc the ecological structure.