The reason why chinese primary health care Foundation Xinyan Public Welfare Fund needs community seal is to prove that its public welfare project has been recognized and supported by the local community. According to the relevant public information, the community seal can be used as a proof that the foundation's public welfare projects have been recognized and supported by the local community, which is helpful to improve the public's trust and credibility in the foundation. In addition, the corporate seal can also be used as a means of management and supervision to ensure that the foundation's public welfare projects are carried out legally and standardized. Therefore, the community seal is of great significance and function to the chinese primary health care Foundation Xinyan Public Welfare Fund.