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Should the old Zhongshan residence permit be recovered when it is renewed?

Don't take it back.

The renewal of Zhongshan residence permit is to erase the information on the original residence permit.

Residence permit is an attempt made by some developed cities in China to learn from the "green card" system of developed countries, which has accumulated experience for China to formulate skilled migration measures and eventually form the national "green card" system of China. Holders of residence permits can enjoy the treatment of local residents.