After the industrial and commercial electronic signature, it is recognized by the public security organ. According to Wang Lin's inquiry, the industrial and commercial electronic signature first needs to apply for an electronic seal in the electronic seal (management) center. After completing the normal procedures and confirming that it is correct and legal, make an electronic seal for the applicant, and import the made electronic seal into a specific storage medium and submit it to the applicant. Applying for electronic official seal through public security organs is the most conventional and traditional way to apply for electronic official seal. Applicants can fill in the application information online first, and go through the examination and approval procedures with the original business license, legal representative's ID card and power of attorney. Therefore, the approval of industrial and commercial electronic signatures is the approval of public security organs.