Legal analysis: effective. The labor contract signed by both parties is the true intention of both parties and does not violate the prohibitive provisions of laws and administrative regulations. The labor contract is legal and valid, and is legally binding on both parties. The state stipulates that employers cannot use child labor.

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

Article 15 Employers are prohibited from recruiting minors under the age of 16. When recruiting minors under the age of 16, literary, artistic, sports and special arts and crafts units must abide by the relevant provisions of the state and guarantee their right to receive compulsory education.

Article 16 A labor contract is an agreement between a laborer and an employer to establish a labor relationship and clarify the rights and obligations of both parties. To establish labor relations, a labor contract shall be concluded.

Article 17 The conclusion and modification of labor contracts shall follow the principles of equality, voluntariness and consensus through consultation, and shall not violate the provisions of laws and administrative regulations. After a labor contract is concluded in accordance with the law, it is legally binding, and the parties must fulfill their obligations under the labor contract.