A high speed image real-time storage system used in airborne TDI CCD camera is introduced in this paper.CCD image data are transferred to DMA controller after buffering in FIFO,and then written into SCSI disk by SCSI processor.A FPGA is adopted to realize the functions of main controller and DMA controller by programming with VHDL.The microprocessor and DMA controller can assist SCSI processor to storage data.After experiment，the system can meet the requirement of high speed image real-time storage of is very reliable airborne TDI CCD.