The invention discloses a computer cooling fin. The computer cooling fin comprises a cooling substrate and a cooling base block, wherein the cooling base block is mounted at the upper end of the substrate; a plurality of cooling fins are uniformly arranged on the cooling base block; graphene cooling layers are arranged on the left side surfaces of the cooling fins; spinning cooling layers are arranged on the right side surfaces of the cooling fins; a first cooling hole and a second cooling hole are formed in each cooling fin; and both the first cooling holes and the second cooling holes penetrate through the graphene cooling layers and the spinning cooling layers. The cooling fins are arranged on the cooling base blocks in parallel, so that the contact area between the cooling fins and theair can be increased and then the cooling surface area can be increased; through forming the first cooling holes and the second cooling holes in the cooling fins, the cooling effect can be furthermore improved; through setting the graphene cooling layer, the cooling speed of the cooling fins can be improved; and through setting the spinning cooling layer, the cooling performance can be furthermore improved.