Provided are a 3D face identity authentication method and apparatus. The method comprises the following steps: obtaining a depth image sequence and a two-dimensional image sequence which include a target face; calculating a 3D texture image of the target face; using the 3D texture image to project a target face two-dimensional image; extracting feature information in the target face two-dimensional image; performing similarity comparison on the feature information in the target face two-dimensional image and feature information in a reference face two-dimensional image. The method combines 3D information and projection to obtain a complete target face two-dimensional image in order to increase recognition accuracy. The method also comprises steps of eye line of sight detection, liveness detection and data updating in order to improve user examination, reduce false recognition rates and tackle problems such as facial changes.
3D FACE IDENTITY AUTHENTICATION METHOD AND APPARATUS