Legal analysis: you can sue; If the other party owes money and can't find anyone, and has a clear defendant, residential address and contact information, the court can accept it. Because the debtor's whereabouts are unknown, the court usually summons the debtor to respond to the lawsuit in the form of an announcement after filing the case. If the debtor fails to respond to the lawsuit at the expiration of the announcement period, the court will make a default judgment after hearing the case with clear loan relationship. After the default judgment, although the debtor's whereabouts are unknown, the court may auction the debtor's house or property at the request of the creditor to pay off the debt for the creditor.
Legal basis: Article 119 of the Civil Procedure Law of People's Republic of China (PRC), the prosecution must meet the following conditions:
(1) The plaintiff is a citizen, legal person and other organization that has a direct interest in the case;
(2) Having a clear defendant;
(3) Having specific requests, facts and reasons;
(4) It falls within the scope of civil litigation accepted by the people's court and is under the jurisdiction of the sued people's court.