Can the company check the personal information of employees?

Generally, there is no right to investigate, but it depends on the reasons for the specific investigation and whether the company has announced it.

Legal basis:

Article 1032 of the Civil Code of People's Republic of China (PRC) stipulates that natural persons have the right to privacy. No organization or individual may infringe upon the privacy rights of others by spying, harassing, exposing or making public.

Privacy is the private space, private activities and private information that natural people live in peace and don't want to be known by others.