Can the company in Shanghai see me pay social security records in Nanjing when it pays me social security again?

I can't. According to the social insurance law of China, the company can only inquire about the social security payment records of employees in this unit. Employees' previous payment records belong to personal privacy, and they need social security account number and query password to query. In the social security system of each company, you can only see the insurance paid by your own company, but you can't find it except your own company.