MimicTalk is a personalized 3D talking face generation technology based on Neural Radiance Fields (NeRF). It can mimic the static appearance and dynamic speaking style of a specific identity within minutes. The main advantages of this technology include high efficiency, high-quality video generation, and precise imitation of the target character's speaking style. MimicTalk uses a generic 3D facial generation model as its foundation and employs a static-dynamic hybrid adaptation process to learn the personalized static appearance and facial dynamics. Additionally, it introduces a Contextual Stylization Audio-to-Motion (ICS-A2M) model to generate facial movements that align with the target character's speaking style. The technological background of MimicTalk is based on the latest advancements in deep learning and computer vision, particularly in the areas of facial synthesis and animation generation. Currently, this technology is freely available to the research and development community.