Legal analysis: Whether the divorce agreement is valid or not depends on the specific circumstances. 1. The divorce agreement does not take effect upon signature. The divorce agreement is a conditional agreement, that is, "divorce" is the effective condition. If divorced, the content of the agreement is valid; If there is no divorce and the conditions are not fulfilled, the agreement will certainly not take effect. Therefore, the divorce agreement will take effect after the divorce registration is completed. 2. When the two parties sign the divorce agreement, there is no fraud, coercion and other circumstances that go against their true personal wishes, and the content of the divorce agreement does not violate the legal provisions and infringe on the interests of a third party. After the two parties sign it, it will have legal effect.

Legal basis: Article 176 of the Civil Code of the People's Republic of China

If a husband and wife divorce voluntarily, they shall sign a written divorce agreement and apply for divorce registration in person at the marriage registration office.

The divorce agreement shall specify the expression of the will of both parties to divorce voluntarily and the consensus opinions on matters such as child support, property and debt handling.

article 177 if either party is unwilling to divorce within 3 days from the date when the marriage registration office receives the application for divorce registration, it may withdraw the application for divorce registration from the marriage registration office.

within 3 days after the expiration of the time limit specified in the preceding paragraph, both parties shall personally apply to the marriage registration authority for issuing a divorce certificate; Those who fail to apply shall be deemed to have withdrawn their application for divorce registration.

article 178 if the marriage registration authority finds out that both parties really divorced voluntarily and have reached consensus on matters such as child support, property and debt handling, it shall register and issue a divorce certificate.