The messages produced during HIV/AIDS awareness campaigns in Cameroon offer a real discursive field worthy of scientific interest. This analysis, entitled "Semiolinguistics and sociolinguistics of HIV/AIDS awareness messages produced by the CNLS and 100% jeune in Cameroon from 2001 to 2019", examines these messages from a linguistic, plastic and iconic point of view. Awareness-raising messages are elements of education whose aim is to adjust the social behaviors and lifestyles of young people. The CNLS and 100% jeune offer various specificities in prevention messages, and are a real field for deploying semiolinguistic and sociolinguistic strategies. Unfortunately, these messages are not always adapted to the target audience. The designers of these messages should therefore take into account the socio-cultural context of these young people when developing awareness-raising messages.