【摘要】At present,Econometric models have found a wide range of applications on economic research.However their reliability can be easily understand by intend or unintended abuses.No doubt,econometric models have the advantage of revealing the numerical relationships on economic phenomena,but there exist certain fatal flaws on these econometric models,which if not treated properly will lead to unexpected mistakes in economic forecast or analysis.In this article some common flaws in econmetric models are investigated and some useful measures are suggested for their improvement.