The invention relates to the technical field of image processing, in particular to a group photo generation method and apparatus, and a mobile terminal. The method comprises the steps of sending a network connection request to a receiver; obtaining a first target 3D model of the receiver and a first background photo containing a sender; or, obtaining a second background photo of the receiver and asecond target 3D model containing the sender; and according to the first 3D model and the first background photo, or, the second 3D model and the second background photo, generating a group photo containing the sender and the receiver. According to the group photo generation method, sufficient communication can be realized, so that the generated 3D model and background photo are more real; and group photography without image matting traces can be realized, so that the group photo generated by utilizing the 3D model is more real, and the group photo quality is higher.