Pay social security in Shenzhen for ten years and then buy it elsewhere.

Legal analysis: 1. Non-deep households leave Shenzhen. If they have paid social security for more than 10 years, it is best not to transfer out of Shenzhen at first, regardless of whether they will return to Shenzhen in the future. After the years in different places are merged into Shenzhen, you can apply for retirement in Shenzhen if it reaches 15. It's not too late to decide not to retire in Shenzhen in the future, so it's not too late to transfer. 2. If a non-deep household has only been away from Shenzhen for a few years and will not come to Shenzhen in the future, then go to Shenzhen Social Security Bureau to open a transfer payment voucher, which can be used to withdraw the provident fund and take this payment voucher to his hometown or new workplace for transfer. Of course, the premise of transfer is to insure locally.

Legal basis: People's Republic of China (PRC) Social Insurance Law.

Article 1 This Law is formulated in accordance with the Constitution for the purpose of adjusting the social insurance relationship, safeguarding citizens' legitimate rights and interests in participating in social insurance and enjoying social insurance benefits, enabling citizens to enjoy the fruits of development and promoting social harmony and stability.

Article 2 The state establishes social insurance systems such as basic old-age insurance, basic medical insurance, industrial injury insurance, unemployment insurance and maternity insurance, so as to guarantee citizens' right to receive material assistance from the state and society in accordance with the law in case of old age, illness, industrial injury, unemployment and maternity.

Article 3 The social insurance system adheres to the principles of wide coverage, basic protection, multi-level and sustainability, and the level of social insurance should be compatible with the level of economic and social development.