Building an emotional connection with tourists and creating an attachment to the destination is essential in tourism marketing. The formation mechanism of destination attachment, as a particular emotion of tourists towards destinations, needs to be further studied. This study analyzes the role of variables such as self-expansion and psychological ownership in destination attachment formation from the perspective of tourist psychology to reveal its formation mechanism more objectively and clearly. The expected findings of this study are that there is a chain mediation role of self-expansion and psychological ownership between tourist involvement and destination attachment, and the need for cognitive closure plays a moderating role in the effect of tourist involvement on tourists self-expansion. This study breaks through the existing perspective of human-place relations and explains the formation process of destination attachment from the perspective of tourists\u27 selves and psychology. The findings give instructions for destinations to enhance tourist relationships and Improve destination marketing
