The volume tendency of in-use and second-hand computers in China were analyzed, the emerging danger of second-hand computers by incorrect treatment was summarized, the integration disposal technologies based on remanufacture and reuse technology aiming at monitors, electronic devices, metals, plastics materials, and overall computers were put forward, the economic and social benefits were also analyzed. The results show that the integration disposal process of second-hand computer is an optimum approach to save the resource of electromechanical products. Remanufacturing and disposal 100 thousands second-hand computers per year could create profits about ¥10 millions and provide employment for 300 persons. It can be deduced that there are great potential opportunities for the second-hand computers disposal industry containing recycle, remanufacture and reuse engineering.