Article 109 of the "Opinions of the Supreme People's Court on Several Issues Concerning the Application of the Civil Procedure Law of the People's Republic of China" stipulates: The effectiveness of property preservation rulings in litigation should generally be maintained until the law comes into effect. It ends when the document is executed.

The security deposit for property preservation should be synchronized with the effectiveness of the property preservation ruling. Therefore, when the property preservation ruling becomes invalid, the security deposit should be returned, that is, the security deposit should be returned when the execution of the effective legal document begins.