Nanjing social security is transferred to Shanghai, and then can it be transferred back to Nanjing?

Can't transfer to Shanghai. Nanjing's social security can't be transferred to Shanghai, because your household registration is not in Shanghai, you can transfer it to your household registration. SocialInsurance refers to a social and economic system that provides income or compensation for people who are unable to work, temporarily unemployed or suffer losses due to health reasons. The main items of social insurance include endowment insurance, medical insurance, unemployment insurance, industrial injury insurance and maternity insurance.