Social insurance is enforced among all or some nationals through national legislation, while commercial insurance is mainly operated on commercial principles and is a contractual relationship. This passage mainly supports such a view. ['Social insurance and commercial insurance should not be cross-managed.', 'Social insurance and commercial insurance can be cross-managed.', 'It is better to unify the management institutions and policies of social security.', 'Legalization in social insurance and commercial insurance should be strengthened.']