The invention belongs to the numerical control machine tool technical field and discloses a multi-sensor based numerical control machine tool heat dissipation electric cabinet control system. The system comprises a power source module, an instruction input module, a parameter initial module, a single-chip microcomputer control module, a heat dissipation module, a temperature compensation module, adisplay module, a fault detection module, a fault diagnosis module and an alarm module. According to the multi-sensor based numerical control machine tool heat dissipation electric cabinet control system of the invention, a movement amount is compensated through the temperature compensation module on the basis of deformation, so that a movement target value is generated and outputted, and therefore, the movement target value can be automatically modified according to temperature difference deformation, the improvement of the machining precision of a machine tool can be benefitted, and labor costs can be reduced. The multi-sensor based numerical control machine tool heat dissipation electric cabinet control system can be used for performing fault monitoring and diagnosis on a variety of numerical control machine tools with high diagnosis speed and accurate and reasonable diagnosis results realized, thereby reducing the failure time of the numerical control machine tools and improving the operating efficiency of the machining of the machine tools and the economic benefits of enterprises. The multi-sensor based numerical control machine tool heat dissipation electric cabinet controlsystem can be widely used in various numerical control machining fields.