How can Yangzhou social security be transferred back to Jiangdu's hometown and paid by itself?

If your registered permanent residence is in Jiangdu, when you leave your work unit in Yangzhou, ask your company to open a social security payment voucher for you and get your old-age insurance handbook back. When you return to your hometown in Jiangdu, you can handle the social security relationship in the form of "individual payment" in the street office where your household registration is located with your household registration book, and then hand over the things from Yangzhou Social Security Center to Jiangdu Social Security Center in the process of handling, so that your social security account in Yangzhou can be transferred to the individual you established in Jiangdu Social Security Center.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.