Can social security contributions prove labor relations?

Legal analysis: Yes. General principles for employers to pay social insurance: The employer shall, within 30 days from the date of its establishment, apply to the local social insurance agency for social insurance registration with its business license, registration certificate or unit seal. The social insurance agency shall, within fifteen days from the date of receiving the application, conduct an audit and issue a social insurance registration certificate; If the social insurance registration items of the employer are changed or the employer terminates according to law, it shall, within 30 days from the date of change or termination, go to the social insurance agency to change or cancel the social insurance registration;

Legal basis: Article 23 of the Social Insurance Law of People's Republic of China (PRC), employees shall participate in the basic medical insurance for employees, and both employers and employees shall pay the basic medical insurance premium according to the provisions of the state.

Individual industrial and commercial households without employees, part-time employees who have not participated in the basic medical insurance for employees and other flexible employees can participate in the basic medical insurance for employees, and individuals pay the basic medical insurance premium in accordance with state regulations.