Legal analysis: Yes, after the final judgment of the court is delivered to the parties, it becomes legally effective after the parties sign it.

Legal basis: People's Republic of China (PRC) Civil Procedure Law.

Article 84 There must be a receipt for the service of litigation documents, and the addressee shall record the date of receipt, sign or seal on the receipt. The date of receipt by the addressee on the service receipt shall be the date of service.

Article 164 If a party refuses to accept the judgment of first instance of a local people's court, he shall have the right to appeal to the people's court at the next higher level within 15 days from the date when the judgment is served. If a party refuses to accept the ruling of the local people's court of first instance, he has the right to appeal to the people's court at the next higher level within 10 days from the date when the ruling is served.