The present invention relates to a mannequin, and, more specifically, relates to a large-scale promotional mannequin capable of being manipulated while moving carried on a person's shoulders like a backpack at, for example, various venues or on the streets for the purpose of advertising or promotion. The backpack-type large-scale promotional mannequin according to the present design comprises: a main mannequin body fitted with a blower operated by means of a battery on one side such that air can be injected therein in tube fashion; a support for supporting the main mannequin body from the bottom so as to allow same to be upright; and a backpack means for strapping, onto the shoulders, the main mannequin body supported upright by means of the support.