Whether or not the bill forgery recognition occur the effects traces back to the former,it can not treat as the same,and it should be decided according to the recognizing content by forged person and seeking the real idea of forged person.

In the circulation of the bill, forged bill has made certainly the party concerned of the bill concerned economic losses and impaired the function of bill credit.

According to the promptness,direction,change and subrogation of the right of document recoverse, the recovered amount is analysed utilizing mathematical network model in the course of document recoverse,so the complex and changeable circulation and transterence become easier and clearer,and a mean of fixing the optimum scheme of document recoverse is developed.

The allocation of risk in forged drawing is a matter of special characteristic in the field of the law for drafts,which is closely related to the fundamental theories and of practical significance as well.