As a key technology in the field of medical visualization, 3D reconstruction has the core value of converting two dimensional image data collected by medical imaging equipment into three-dimensional models through computers, and presenting them on screens, providing medical professionals with intuitive and accurate diagnostic and treatment assistance. With the advancement of medical imaging technology, 3D visualization technology has become a research focus for improving the accuracy of medical planning. The aim of this paper is to reconstruct an accurate 3D model through a 2D medical image sequence and develop a PC oriented 3D medical image visualization platform. The system uses OpenGL as the development tool to visualize preprocessing, image segmentation, and registration algorithms, as well as to design the system architecture.