Due to the over negative report of adverse event following immunization (AEFI) by media, some people began to question the safety of vaccination. Date published since 2005 were collected by literature retrieval, mainly including relative AEFI date, current status of media report of AEFI, public awareness about AEFI. Public concern about the vaccination safety mainly focused on the serious diseases which might be caused, influence on immune system. Media' s over negative reactions to AEFI and lack of related knowledge in general public have led to the public' s concern about vaccination safety. Vaccination is the most economical and effective measure for the prevention of diseases and AEFI incidence rate is very low. Therefore, it is necessary for media to give more positive report about vaccination safety.