The labor contract is valid if it is stamped with the official seal but not signed. The signature or seal on the labor contract is evidence that both parties have agreed to protect the rights and interests of both parties regarding labor and employment, and it also has the legal effect of binding the behavior of both parties. In the absence of special agreement, the signatures of both parties to the labor contract can indicate that the labor contract has come into effect.

Article 16 of the "Labor Contract Law of the People's Republic of China" The labor contract shall be agreed between the employer and the employee through negotiation, and shall be signed or sealed by the employer and the employee on the labor contract text. Take effect. The employer and the employee each keep a copy of the labor contract text.