Dear, according to your question, the following answer is for reference only: individuals in Haidian District, Beijing can go to the window to clean up social security data. Social security data cleaning: to do data cleaning in social security, you should bring your ID card and household registration book, write a data cleaning certificate, and then fill out a reduction form in the social security bureau. Insured units can make an appointment with the comprehensive business number of the last insured unit of the insured person, and carry the "Beijing Social Insurance Insured Reduction Form" to the social security center or sub-center counter for data cleaning. For the insured individual, the applicant shall take the "Beijing Social Insurance Insured Reduction Form" and a copy of the second-generation ID card within the validity period, and go to the social security center to get the number. After the data is cleaned up, the new employer can go through the insurance procedures for this person on the grounds of "new insurance" and "transfer to another post to increase staff".