Does the social security of the company need to be paid separately?

Need. According to the provisions of Article 12 of the Social Insurance Law of People's Republic of China (PRC), the employer shall pay the basic old-age insurance premium according to the proportion of the total wages of its employees stipulated by the state and record it in the basic old-age insurance pooling fund. Employees shall pay the basic old-age insurance premium in accordance with the proportion of wages stipulated by the state and record it in their personal accounts.