A method for generating three-dimensional (3D) content for a performance of a performer in an apparatus for generating 3D content is provided. The apparatus for generating 3D content obtains a 3D appearance model and texture information of the performer using the images of the performer located in the space, sets a plurality of nodes in the 3D appearance model of the performer, generates a 3D elastic model of the performer using the texture information, obtains a plurality of first images of the performance scene of the performer photographed by a plurality of first cameras installed in a performance hall, renders a plurality of virtual images obtained by photographing a 3D appearance model according to position change of each node in a 3D elastic model of the performer through a plurality of first virtual cameras having the same intrinsic and extrinsic parameters as the plurality of first cameras, using the texture information, determines an optimal position of each node by using color differences between the plurality of first images and a plurality of first rendered with respect to the plurality of virtual images obtained by the plurality of first virtual cameras, and generates a mesh model describing the performance scene by applying 3D elastic model parameter values corresponding to the optimal position of each node to the 3D elastic model.