Abstract: The efficient comprehensive utilization of spent hydrotreating catalysts in refinery has received considerable attention because of its increasing enormous quantity and contaminating the environment. In this paper，the progress in utilization of spent hydrotreating catalysts is summarized from three points of regeneration and recycling，reuse of spent hydrotreating catalysts in other processes and the preparation or recycling of useful materials from the spent catalysts. Besides that，the present imperfections and directions in the future are also propounded.