To achieve extensive field of view optical imaging, research has been conducted on a system utilizing free-form surface optical components. This research encompasses the optical design of such systems, ultra-precision machining of free-form surfaces, synchronous error detection in form and position, and system integration with imaging experiments. Initially, by studying the mechanism of aberration formation under multiple constraints, a precise model for the parametric description of free-form surface optical systems was developed. Subsequently, nano-precision machining and high-frequency suppression techniques were explored for aluminum alloy free-form mirrors, alongside high-precision shape and position detection using computer-generated holographic elements. Comprehensive experiments on system integration and imaging were performed. The results show that the system's field of view is 30°×5°, with an optical transfer function value exceeding 0.7, approaching the diffraction limit, and a maximum pixel root mean square radius of 2.075 μm. The surface shape accuracy of the free-form optical components has an RMS value better than 20 nm, and position accuracy better than 1 μm. Post-assembly, the system fulfills the criteria for large field of view and high-resolution applications, also demonstrating stability, reliability, and rapid response in manufacturing.