An electronic device is provided. The electronic device includes a camera, a display, and a processor configured to obtain a first image including one or more external objects by using the camera, display to output a three-dimensional (3D) object generated based on attributes related to a face among the one or more external objects using the display, receive a selection of at least one graphic attribute from a plurality of graphic attributes which can be applied to the 3D object, generate a 3D avatar for the face based on the at least one graphic attribute, and generate a second image including at least one object reflecting a predetermined facial expression or motion using the 3D avatar.