The invention discloses a turbo type cooling fin and a manufacturing process thereof. The turbo type cooling fin comprises a fixed ring. A fixing hole is formed in the fixed ring. A fixed plate is arranged at one end of the fixing hole. The fixed plate is provided with mounting holes. Cooling fin bodies axially distributed in an array mode are arranged on the periphery of the fixed ring. The middle portion of each cooling fin body is provided with a turbulence groove. A branch fin is arranged on the upper portion of each turbulence groove, and a main fin is arranged on the lower portion of each turbulence groove. The cooling fins belong to serrated blades. Compared with a common linear type cooling fin, the heat radiating area is increased. The multiple fan-shaped cooling fins are arrangedin a staggered mode to form a heat radiating space to conduct quick convection or radiant heat radiation; through multi-area turbulence flow ( a turbulence area refers to a stereoscopic space formedafter blade machining), raw materials are saved, and the material cost and the transportation cost are reduced; the style of the turbo type cooling fin and the turbulence area are perfectly matched and integrated, the beauty sense of the product is enhanced, and the heat radiating speed of a lamp can be increased.