The Adult Attachment Scale-Revised (Collins and Read in J Person Soc Psychol 58(4):644, 1990. https://doi.org/10.1037/0022-3514.58.4.644) measures the dimensions of the attachment style of adults through the degree to which the individual feels comfortable in intimacy and closeness with the partner (Close), with dependence on the partner (Depend) and worrying about being rejected or unloved (Anxiety). Dimensions measured by the AAS can capture the core of the structure that determines adults' differences in attachment styles. This study aimed to evaluate the factorial structure of the AAS-R among a sample of Italian adults. The Italian translation of AAS-R was administered to the sample of 1546 Italian adults (M = 27.4; SD 9.35). Exploratory factor analysis and confirmatory factor analysis were performed to examine the validity of the Italian version of the AAS-R measure. The present study showed that the Italian version of the AAS-R has a clear factorial structure and good psychometric properties. Clinical and research implications were discussed.