What should I do if the fresh graduates of Beijing institutions find that they have foreign social security accounts when they apply for social security?

You can apply for social security transfer or surrender.

The transfer procedure is that you need to apply for the transfer certificate or letter of introduction at the social security bureau where you are transferred, and then apply for the endowment insurance materials at the social security bureau with your ID card. Medical insurance does not support the transfer from other places, but can only be used at the place of purchase and enjoy reimbursement, that is, other varieties can only be used locally. In the overall planning area, you can handle the transfer relationship at will, and in the non-overall planning area, you can only transfer the old-age insurance to the social security bureau where the account is located. Therefore, if your account is local, you can handle the transfer. For inter-provincial and inter-city transfer, the procedures need to be applied to the social security bureaus of the two places respectively, and only personal accounts can be transferred. Personal accounts and overall accounts cannot be taken away together, so be prepared psychologically. Two years after the termination of the labor contract, the provident fund can apply to the local provident fund management center for refund.