In China 's current legal system of the marriage and the family,about the identification of common debt of husband and wife,we have four main rules,which is For the common life,The duration of the marriage relationship,“ Husband and wife daily family agency” and the rules of exclusion in the common debt,“Agreed to exclude”,“Illegal debt exclusion” and “False debt exclusion”.But the relevant rules failed to form a unified system,the rules are not clear,and there are some conflicts between the rules.So in the...