This work is based on the Unity engine and Vuforia augmented reality application development kit to design and develop an iOS platform augmented reality interactive picture book application. Using the picture book application, the user can paint or paint on the physical paper picture book in real time and accurately in the way of augmented reality as a virtual three-dimensional model, and can easily interact in real time. In view of the problem that the existing interactive picture books can not be drawn in real time, which leads to poor interactivity, this work studies and realizes the efficient real-time drawing function. At the same time, this work studies and experiments the three-dimensional model occlusion surface filling technology based on image restoration algorithm, which solves the occlusion problem of three-dimensional model. This work is better than ordinary interactive picture books in the sense of reality and interactivity.