Elliptical gears are key components in non-uniform transmission systems and are widely used in textile machinery, automatic production lines and precision instruments. With the growing demand for high-precision and customized transmission parts, traditional manufacturing methods face limitations in efficiency, cost and structural optimization. This paper focuses on the manufacturing design and finite element analysis of elliptical gears to solve typical technical problems in production. Suitable tools and equipment are selected for CAM analysis, and a complete manufacturing process is designed to ensure machining accuracy and efficiency. Static finite element analysis is carried out to verify the mechanical stability and bearing performance of the gear structure, and a 3D printing scheme is proposed for small-batch customization. This study integrates digital design, simulation and additive manufacturing, providing a practical technical framework for high-performance manufacturing of elliptical gears.