PROBLEM TO BE SOLVED: To provide a highly safe, naturally derived lipolysis promoter which promotes the decomposition of accumulated adipose tissues and can sufficiently suppress/prevent/improve obesity.SOLUTION: The lipolysis promoter includes one or more plant bodies selected from the group consisting of Escholzia california, Sparganium stoloniferum, Sanguinaria canadensis, Mahonia Aquifolium, a fruit part of Musa paradisiaca, Cytisus scoparius, Hydrastis canadensis, Ficaria ranunculoides, Fumaria officinalis, Unonopsis floribunda, Nasturtium officinale, Urtica dioica, Capsella bursa-pastoris, and Polygonum bistorta and/or an extract thereof as an active ingredient.