1. If you sue your husband for overdue credit card repayment, it is a joint debt of husband and wife, and the wife will be implicated. If the husband's credit card loan is used for the husband and wife to live together, it belongs to the husband and wife's joint debt, and the wife shall bear the repayment responsibility. On the contrary, if the wife has evidence to prove that the loan is not used for husband and wife to live together, she will not be liable for repayment.

2. Legal basis: Article 1064 of the Civil Code of People's Republic of China (PRC).

Debts jointly signed by husband and wife or ratified by one of them afterwards, as well as debts incurred by one of them in his own name for the daily needs of the family during the marriage relationship, are joint debts of husband and wife.

Debts incurred by one spouse in his own name during the marriage relationship that exceed the daily needs of the family are not joint debts of husband and wife; However, the creditor can prove that the debt is used for husband and wife's common life, joint production and operation, or based on the common will of both husband and wife.

Second, what conditions must be met for prosecution?

1. The plaintiff is a citizen, legal person and other organization that has a direct interest in this case;

2. There is a clear defendant;

3, there are specific claims and facts and reasons;

4. It belongs to the scope and jurisdiction of the people's court to accept civil litigation.