As a digital low-light imaging device, the electron-bombarded active pixel sensor (EBAPS) has the ability to obtain a clear image under both day and night conditions. Compared with visible light and infrared imaging, its imaging system has the advantages of miniaturization, low cost, and low power consumption, making it a popular research topic in the field of imaging. Adopting a fully domestic EBAPS low-light device concept and FPGA as the main processor, an EBAPS device driving circuit, image processing and tracking circuit, and display circuit were completed. Using an optical system that satisfied the requirements of both day and night, a miniaturized handheld imaging and tracking system was built. The experimental results show that the EBAPS imaging system realizes clear imaging and good tracking effects under illuminance conditions ranging from 1 × 10^-4 to 1 × 10⁴ lx.