I bought social security in Guangyuan and social security in Chengdu. Can they last together?

Social security is cumulative, can be continuous, can be transferred at any time, if not, it will be automatically merged when you retire.

But you'd better change it now, lest the social security department of Guangyuan lose it for you before it goes online.

Transfer mode of endowment insurance

If your new work unit is in the same area as your current insured place, you need to open a "stop payment voucher" in your original work unit, and you can continue to pay the fee with the stop payment voucher in your new work unit.

If your new work unit is not in the same area as your current insurance place, you should issue a certificate of insurance payment in the original social security agency, establish a basic old-age insurance relationship in the new employment unit and start paying fees, then submit an application for merging social security accounts in different places and a certificate of insurance payment to the social security agency in the new insurance place, and then communicate and coordinate with the two social security agencies in the new insurance place and the original insurance place.

You should consult the social security agency for details.