Legal analysis: breaking the law. Social security for employees is compulsory by the state, and all units and individuals must participate. Therefore, it is illegal for companies not to pay social insurance for workers according to state regulations. Since you entered the factory, you have formed a factual labor relationship with the company, and the unit should pay social security for you. Labor arbitration is the most effective legal remedy to safeguard rights and interests.

legal basis: article 72 of the labor law of the people's Republic of China determines the source of funds for social insurance funds according to the types of insurance, and gradually implements social overall planning. Employers and workers must participate in social insurance and pay social insurance premiums according to law.