The difference between signing a labor contract and not signing a labor contract: When a worker goes to work in an employer, he or she needs to sign a labor contract, which will ensure the legitimacy of the worker's labor relations. If a labor contract is not signed, the rights and interests of workers may be violated by the company. According to relevant regulations, if an employer fails to conclude a written labor contract with a worker more than one month but less than one year from the date of employment, it shall pay twice the salary to the worker every month.
 The labor relationship shall be established according to Article 10 of the Labor Contract Law of the People's Republic of China, and a written labor contract shall be concluded. If a labor relationship has been established but 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 an employer and a worker conclude a labor contract before employment, the labor relationship shall be established from the date of employment.
 Legal basis
 Article 10 of the Labor Contract Law of the People's Republic of China (2012 Revision) [Conclusion of a written labor contract] To establish a labor relationship, a written labor contract shall be concluded.
 If a labor relationship has been established but 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 an employer and a worker conclude a labor contract before employment, the labor relationship shall be established from the date of employment.