Only paid social security in Shanghai 10 years, not in other provinces. What should I do when I reach retirement age?

According to the situation you described, this person did not pay social security in his hometown, but only paid social security in Shanghai for 10 years, which does not meet the conditions for receiving a pension in Shanghai.

If the man wants to receive a pension in Shanghai, he must first see whether he has established a basic old-age insurance relationship in Shanghai. If the basic old-age insurance relationship is established, it depends on whether you pay in Shanghai 10 year. If the payment is made in 10 year, you can continue to pay in 15 year, or you can go back to your domicile to continue to pay and get a pension there. If the man has not established a basic old-age insurance relationship in Shanghai, he should immediately establish a basic old-age insurance relationship after returning to his domicile, and continue to pay to the domicile to receive a pension.

Regarding the payment of social security, you can consult the social security bureau in Shanghai or your hometown. If you make up the remaining five years of social security at one time, you must pay it once a year, and you can't get a pension until you are 65 years old. The specific regulations will be different.