The invention is a manufacturing method for cobalt Fischer-Tropsch synthesis catalyst. It produces silica gel carrier through sol-gel method, the silica gel carrier is surface mollified by amine liquor, and then the active component cobalt is loaded on to the silica gel surface through isopyknic pickling process. There gets the mollified cobalt silicon catalyst through drying and baking. The reaction activity and selection are enhanced greatly through the mollifying of amine, the operation life is long, and the manufacturing method is simple. |