Yes, but basic living needs will be retained. Depending on the circumstances, the debtor will generally not be detained if he is truly unable to repay the debt. If there is an IOU to borrow money and the loan is not repaid, the two parties can negotiate. If the negotiation fails, the lender can file a lawsuit in the People's Court in accordance with the law and use legal weapons to protect its legitimate rights and interests. If the court judgment is not fulfilled within the performance period, the creditor can apply to the court for enforcement. If a party refuses to fulfill the legally effective judgment or ruling of the People's Court, the People's Court may impose a fine or detain him or her according to the seriousness of the case.

"People's Republic of China and Civil Code"

Article 675

The borrower shall repay the loan within the agreed time limit. If there is no agreement on the loan period or the agreement is unclear, and it cannot be determined according to the provisions of Article 510 of this Law, the borrower may return the loan at any time; the lender may urge the borrower to return the loan within a reasonable period of time. Article 676

If the borrower fails to repay the loan within the agreed time limit, he shall pay overdue interest in accordance with the agreement or relevant national regulations. Article 677

If the borrower returns the loan in advance, interest shall be calculated based on the actual borrowing period, unless otherwise agreed by the parties. Article 678

The borrower may apply to the lender for an extension before the repayment period expires; if the lender agrees, the extension can be made. Article 679

A loan contract between natural persons is established when the lender provides the loan.