As the CCD camera based on CameraLink interface can not display images without a dedicated data acquisition card and system computer, a kind of simple and real-time image display system was designed for a 4 008×5 344 array CCD camera based on CameraLink interface. Two SDRAMs were used in the system to storage images alternately, and the main logical function was accomplished in a Spatan3 family Field Programming Gate Array(FPGA) from Xilinx Company. The image data from CameraLink were storaged in a SDRAM by stitching and BIN processing,meanwhile,the image data read from another SDRAM at a speed of 25 frame/s(50 field /s) were convert to standard TV analog signals by a digital-to-analog encoder chip ADV7300 to display in an analog monitor. The verification results show that the system can real-time display the images of the large-array digital aerial camera with different resolutions and their details at a speed of 3.6 frame /s,and also can adjust the brightness of the images to get a good observation according to the weather conditions. The designed system only contains one PCB board and one alanog monitor and has been used in a CCD digital aerial camera with the 4 008×5 344 array successfully.