Based on an ethnographic study of an AIDS online forum，this passage tried to reveal how the stigma individuals made discourse resistance. Study found that at least four strategies were used：to name AIDS as “chronic disease” instead of “plague” or “infectious disease”，constructing new AIDS knowledge system；to wave the ill in the logic of destiny，reducing the responsibility for their own behavior；to emphaze the sub culture feature of “promiscuity”，through stating the view that sex freedom is a form of human nature freedom；to rectify the name of “homosexuality”，constructing infection narrative to the interests of gay with “love” as a clue and “tolerance” as a slogan.