Legal analysis: The defendant can be required to pay attorney fees. If infringement occurs, the defendant may be required to pay attorney fees. The following cases can require the defendant to bear attorney fees and litigation costs:

1. Legal aid cases;

2. Copyright infringement cases;

3. Trademark infringement cases ;

4. Patent infringement cases;

5. Unfair competition cases;

6. Litigation cases involving creditors exercising their right to cancel in contract disputes;

7. Security rights litigation cases;

8. Consumer civil public interest litigation cases;

9. Commercial arbitration cases;

10. The parties involved in The contract clearly stipulates that attorney fees shall be borne by the losing party.

Legal basis: "Interpretations of the Supreme People's Court on Several Issues Concerning the Application of Law in the Trial of Trademark Civil Dispute Cases" Article 17 of Article 63, Paragraph 1 of the Trademark Law, reasonable payments to stop infringement Expenses, including reasonable expenses incurred by the right holder or its agent to investigate and collect evidence on the infringement.

Based on the litigation claims of the parties and the specific circumstances of the case, the People's Court may calculate attorney fees that comply with the provisions of relevant national departments into the scope of compensation.