Please tell me what documents are needed to transfer social security from Chengdu, Sichuan to Wusu, Xinjiang.

The following procedures: 1. Print the Payment Voucher. Before leaving the city, the insured person with his original ID card and a copy of the city's social security bureau or the city's town (street) social security office to print the "payment voucher" of my participation in the city. 2, apply for transfer and continuation. Participants with "proof of payment" to the new employment of social security institutions to apply for pension insurance relations continue. 3, its pension insurance relations will be the original social security institutions and the current social security institutions in contact with the social security institutions, so that participants before and after the insurance record is connected together.