【摘要】The relation between deposit insurance and moral hazard is the focus of constructing deposit insurance system.In this paper,a model is constructed from the view of bank for illustrating this relation and is applied in China.The conclusion of this paper is the degree of moral hazard doesn't depend on the type but depend on the parameter of deposit insurance system.When it comes to China,the transformation from implicit deposit insurance system to explicit deposit insurance system can efficiently improve monitoring level of bank,reduce the emergence of moral hazard.