Abstract:At present, visualization of 3D model mainly based on OpenGL and DirectX, the biggest drawback of traditional tools is the existence of cross-platform compatibility issues. With the development of Internet technology, the compatibility of the browser platform is getting better and better, according to the above problem, this paper proposes a interactive control method of dental model based on WebGL. The method has a good cross-platform, theSsolutionsSofStraditional toolsSareSdepended on plug-in or third-party components, on the browser can make dental model to complete the translation, rotation and scaling function, using quaternion to achieve rotation algorithm, savingSspace, reducingScomplexity of the calculation process, while avoiding gimbal lock in the rotation. Finally, through the experiment proved that the method can show a clear, intuitive, smooth mouse control effect.