Chinese people\'s pornography use is increasing and condomless sex is prevalent in pornography. However, both the relationship between pornography and condom use among Chinese adults and the mechanisms underlying this relationship are underexplored. This study examined how perceptions of pornography were associated with attitudes toward condom use through the mediating effect of gratification of sexual pleasure and safer sex communication apprehension, and how shared pornography use with a partner during sex moderated these relationships. A total of 658 participants (391 women and 267 men) aged 18-65 years and involved in a romantic relationship completed an online survey assessing pornography consumption, condom use, gratification of sexual pleasure, and safer sex communication apprehension. Results showed that expressive/erotic perceptions of pornography were associated with higher levels of gratification of sexual pleasure, which were, in turn, associated with more negative attitudes toward condom use. Expressive/erotic perceptions of pornography were also associated with lower levels of safer sex communication apprehension and lower levels of negative attitudes toward condom use. Higher levels of shared pornography use with a partner during sex strengthened the direct positive relationship between expressive/erotic perceptions of pornography and negative attitudes toward condom use. Higher levels of shared pornography use during sex also strengthened the positive relationship between expressive/erotic perceptions of pornography and gratification of sexual pleasure, and the negative relationship between expressive/erotic perceptions of pornography and safer sex communication apprehension, which in turn, were significantly associated with attitudes toward condom use. Implications for sexual health education and limitations are discussed.