Intelligent laptop heat-radiating system and fan speed-adjusting method thereof

The invention relates to an intelligent laptop heat-radiating system and a fan speed-adjusting method thereof. The system comprises a radiator casing, an upper computer and a power supply, wherein a first fan, a second fan and a single-chip microcomputer control module are mounted inside the radiator casing and powered by the power supply, and a USB connecting line is led out of the single-chip microcomputer control module and connected to the upper computer. The method comprises temperature detection, communication protocol transmission and fan rotating speed control. According to the system, fan rotating speeds are adjusted automatically according to temperatures of a laptop device, and radiators with speeds which are adjusted manually and externally in the past and even can not be adjusted are replaced, so that intelligent control of the radiators is realized, resources are saved effectively, and the system is simple to operate and convenient to use.