Our new crown inactivated vaccine and new crown recombinant vaccine are usually relatively safe and effective, with only differences in preparation technology and number of doses administered, and there is no argument that one is better than the other. In general, both inactivated and recombinant vaccines developed by China and approved for marketing by the drug regulatory authorities are relatively safe, stable and effective. They are both able to prevent infection by the New Crown virus, build an immune barrier for the whole population, and block the chain of transmission of the virus, and there is no argument that one is better than the other. Inactivated vaccines are prepared by killing the live virus amplified in culture, while recombinant vaccines are vaccines that recombinantly express antigenic proteins. According to the current immunization program, the inactivated vaccine requires two doses of basic immunization, and the recombinant vaccine requires three doses of basic immunization.