The utility model relates to an industry server and multichannel heat radiation structure thereof. This multichannel heat radiation structure include: the mainboard has the mounting surface, and has first end and second end, four CPU on the mounting surface is located at the interval, are holding to the direction of second end in along first, and four CPU arrange and are two rows, four radiators are located respectively on four CPU, the aviation baffle is located on the mounting surface for form four passageways, and have and have only a radiator in each passageway. Each CPU and the radiator that corresponds have an independent passageway, propagate when dispel the heat to CPU along first the end to the direction of second end when wind, propagate through its wind channel that corresponds of hot -blast edge of the CPU that is close to first end, can not cause the influence to the CPU's that holds near the second heat dissipation. The temperature of the wind on propagation to the radiator of each CPU and correspondence is the same basically to can make the temperature of the radiator of four CPU and correspondence maintain a within range the same basically also is that the radiating effect is more balanced.