The present invention relates to an automatic revolving door installed on the entrance of buildings, especially relates to an automatic revolving door having a dispersion unfolding structure of a revolving wing, in which each revolving wing is engaged at a lower side of an upper plate driven by a driving motor with the revolving wings being divided at regular angles, and an upper outer side of the revolving wing is hinged at an outer end of the support of the upper plate, and the upper inner side of the revolving wing is slidable at a lower side of the cross bar of the upper plate, and each revolving wing is automatically unfolded in the direction of the outer wall member with respect to the outer front end. When it needs open the revolving door, the revolving wing is unfolded towards theinner side of the wall member to open the revolving door completely for the entrance of the VIP or actors with their entourages, which ensures that large objects can pass through the revolving door such as car or furniture. According to this, the efficiency is maximized, the convenience for using is improved without providing other doors and any blocking obstacle is eliminated and several people can pass through the door synchronously.