A labor contract without signature is invalid. Under normal circumstances, employers will sign and seal labor contracts, but sometimes they will see labor contracts that only sign and don't seal or only seal and don't sign. In the absence of special agreement, the signature of both parties to the labor contract can indicate that the labor contract is valid.

Article 17 of the Labor Contract Law of People's Republic of China (PRC) shall have the following provisions: (1) the name, domicile and legal representative or principal responsible person of the employing unit; (2) The name and address of the laborer and the number of the resident identity card or other valid identity documents; (3) The term of the labor contract; (4) Work content and work place; (five) working hours and rest and vacation; (6) Labor remuneration; (7) Social insurance; (eight) labor protection, working conditions and occupational hazard protection; (nine) other matters that should be included in the labor contract as stipulated by laws and regulations. In addition to the necessary provisions stipulated in the preceding paragraph, the employer and the employee may agree on probation, training, confidentiality, supplementary insurance and welfare benefits.