An infrared staring imaging system in the 3 to 5 micrometers spectral band has been developed by SITP laboratories in China. The sensor utilized is a Pt-Si Schottky-barrier infrared CCD focal plane array. The digital video processing electronics is designed for 32 X 64, 64 X 64, and 128 X 128 pixel formats and contains the elimination of fixed pattern noise and the correction of response nonuniformity in real time and provides the high-quality IR image. The standard TV compatible and portable features are part of the design. In this paper, we describe the design and performance of this prototype system and present some experimental examples of IR imagery. The results demonstrate that the Pt-Si IR CCD imaging system has good performance, high reliability, low cost, and can be suitable for a variety of commercial applications.