分析研究Leland(1998)于美国芝加哥财务联合会上提出的企业资本结构态模型，结合我国实际从理论上论证该模型在我国运用的可行性，并用我国沪深两市冶金行业和信息技术行业部分上市公司数据进行实证研究。实证结果表明：该模型对我国企业资本结构的理论研究和实际操作都有一定的指导意义，是可以运用并深入发展的。

The optimal capital structure dynamic model, which Leland (1998) had presented, in the American finance association meeting in Chicago, is specified and studied, the theoretical verify is given to support its application in our country. Then by applying the methodology of the model to examine optimal capital structure properties of our firms' in Shenzhen and Shanghai stock market, we find that the model can provide a general guidance on our practitioners and academics.