The invention discloses a heat dissipation mechanism and a device provided with heat sources. The heat dissipation mechanism includes at least one first heat dissipation channel and at least one second heat dissipation channel. The first heat dissipation channel is arranged along a first path and the second heat dissipation channel is arranged along a second path, wherein the first path and the second path are arranged side by side and the heat transfer direction of the first heat dissipation channel between two positions is opposite to each of the second heat dissipation channel between the two positions. When in work, the temperatures of the at least two positions of the first heat dissipation channel are different and the temperatures of the at least two positions of the second heat dissipation channel are also different. The position having the comparatively higher temperature in the second heat dissipation channel is arranged adjacent to the position having the comparatively lowertemperature in the first heat dissipation channel. By adopting the above method, the temperature of the whole device can be balanced and temperature difference between the heat sources can be reduced.