An electronic device includes a camera, a display, and a processor. The processor displays a user interface including menu items supporting entry into an edit mode for a body part of an emoji displayed on the display. The processor captures a user face image using the camera, upon a user requesting facial expression edit mode from the interface. The processor generates a facial expression motion file from the user face image. The processor captures a user body image using the camera upon the user requesting body motion edit mode. The processor generates a body motion file from the user body image. The processor adjusts sync for combining the generated facial expression motion file and body motion file. The processor generates a customized emoji sticker on which user facial expression and body movement are reflected by combining the sync-adjusted facial expression motion file and body motion file.