A labor agreement is legally effective if it is concluded voluntarily by both parties. At the same time, it needs to meet the requirement that the actor has the corresponding civil capacity; True declaration of intention; It does not violate the mandatory provisions of laws and administrative regulations, and does not violate the three effective elements of public order and good customs.
 Civil Code of the People's Republic of China
 Article 143 A civil juristic act is valid if it meets the following conditions:
 （1） The actor has corresponding civil capacity;
 （2） True declaration of intention;
 （3） It does not violate the mandatory provisions of laws and administrative regulations, and does not violate public order and good customs.
 Article 144 A civil juristic act committed by a person without civil capacity is invalid.