Legal analysis: The labor contract does not require a signature when the legal person seals it. After the labor contract is stamped by the employer, whether the legal representative signs or not does not affect the validity of the labor contract. The labor contract only needs to be stamped with the official seal of the employer. Have legal effect. The labor contract should generally include the signature of the employer's legal representative or its authorized principal, the legal person's seal and the employee's signature or seal. If it is stamped by an appraisal agency, it can enhance the credibility of the contract, but it will not affect the validity of the contract itself.

Legal basis: 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 by the employer and the employee on the labor contract text. Or stamp it to take effect. The employer and the employee each keep a copy of the labor contract text.

Article 490 of the "People's Republic of China and Civil Code" Where the parties conclude a contract in the form of a contract, the contract is established when both parties sign, seal or fingerprint. Before signing, sealing or fingerprinting, one party has performed its main obligations and the contract is established when the other party accepts it. Laws and administrative regulations stipulate or the parties agree that a contract should be concluded in written form. If the parties do not use written form but one party has performed its main obligations and the other party accepts it, the contract is established.