I worked in Haidian, Beijing for more than two years, and then I went to work in Changping District. How to transfer social security?

Are you registered in agricultural registered permanent residence or a town? Agricultural registered permanent residence began to have medical insurance in April, which means that your company should apply for a medical insurance card in April, but when did your original company submit the personal information collection form to you? That's all that matters. If your original company submits it to you in April, your medical card will only be collected from your original company. If you have not submitted the information collection form, please explain it to your new company and ask the new company to submit it to you. The original record you mentioned is your payment voucher, which proves how many years you have paid insurance. You can check this with the social security bureau. If your company applies for online declaration, you can check it online.