Legal analysis: First, the labor contract can be signed normally, but the laborer needs to sign the certificate of giving up paying social security. The labor law respects the individual wishes of workers, but what needs to be known is that enterprises must pay social security for employees, because this is mandatory by the state.

Two, the employer has two main obligations:

1. To apply for social insurance registration, the employer shall apply to the local social insurance agency for social insurance registration at the time of establishment, and shall also apply to the social insurance agency for social insurance registration of employees within 30 days from the date of employment.

The second is to pay social insurance premiums according to law, in which the payment obligations of employees' basic old-age insurance, employees' basic medical insurance and unemployment insurance are shared by employers and employees, and the payment obligations of work-related injury insurance and maternity insurance are all borne by employers. The social insurance premiums payable by employees shall be withheld and remitted by the employer, and the employer shall also inform me of the details of paying social insurance premiums on a monthly basis.

Legal basis: Article 2 of the Social Insurance Law of People's Republic of China (PRC) The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance, maternity insurance, etc., to protect citizens' right to get material help from the state and society according to law in case of old age, illness, industrial injury, unemployment and maternity.