Disclosed is a radiator. The radiator comprises array heat pipes and abnormally-shaped fins, wherein the abnormally-shaped fins can improve the chimney effect, the array heat pipes and abnormally-shaped fins are integrally formed, and no gaps exist between the array heat pipes and the abnormally-shaped fins. Due to the facts that the radiator comprises the abnormally-shaped fins, and the abnormally-shaped fins and the array heat pipes are integrally formed, the area of the fins is increased, the chimney effect is improved, the problem that heat conduction of the heat pipes is quick, but the heat dissipation efficiency of the heat pipes is low is solved, and the heat dissipation effect is improved. Meanwhile, the number of the working procedures is reduced, the cost is saved, and an array heat pipe radiator can be safer, more reliable and more environmentally friendly. In addition, the radiator expands the application fields of aviation, aerospace, computers, electric appliance components, electronic equipment, civil radiators and the like, and has the quite high social value and the quite high economic benefit.