Legal analysis: the labor contract is only valid with signature and handprint. The labor contract shall come into effect after the employer and the employee sign or seal the text of the labor contract through consultation. A labor contract can bind the rights and obligations of both parties and protect the legitimate rights and interests of workers. It is legally effective to sign a labor contract under the premise of agreement.

Legal basis: Article 10 of the Labor Contract Law of People's Republic of China (PRC) establishes labor relations, and a written labor contract shall be concluded. If a labor relationship has been established and a written labor contract has not been concluded at the same time, a written labor contract shall be concluded within one month from the date of employment. If the employer and the employee conclude a labor contract before employment, the labor relationship shall be established from the date of employment.