1. It is illegal for an employer to sign a blank labor contract for employees, and employees can refuse to sign it. If the company continues to employ workers, it can ask the company to pay twice the salary of the written labor contract started within two years after joining the company. If the unit does not want workers, it is illegal for the unit to terminate the labor relationship. When signing a labor contract, the laborer must fill in the labor contract clearly and completely, and can sign it only after confirming the agreement with the employer.

2. Legal basis: Article 26 of People's Republic of China (PRC) Labor Contract Law.

Invalidation of Labor Contract The following labor contracts are invalid or partially invalid:

(1) Causing the other party to conclude or change a labor contract against its true meaning by means of fraud, coercion or taking advantage of the danger of others;

(2) The employer exempts itself from legal liability and excludes the rights of workers;

(3) Violating the mandatory provisions of laws and administrative regulations.

Any dispute over the invalidity or partial invalidity of a labor contract shall be confirmed by the labor dispute arbitration institution or the people's court.

Second, what are the conditions for the contract to take effect?

1, the parties to the contract have corresponding capacity for civil rights and capacity for civil conduct;

2. The intention of the parties to the contract is true;

3, the contract does not violate the law or social interests;

4. Have the formal requirements for the entry into force of the contract as stipulated by laws and administrative regulations.