The present invention relates to an intelligent monitoring control system of an external connection type ball mill. The system comprises a temperature acquisition module, a signal transmission module used for transmitting a temperature signal acquired by the temperature acquisition module, and a data intelligent analysis and control module. The signal transmission module is used for transmitting data measured by the temperature acquisition module to the intelligent analysis module. The intelligent analysis module is used for analyzing a data document, and sending out an early-warning signal or sending an instruction to a control part thereof. The control system is independent of an original electrical system, and is high in adaptability. High-performance thermoelectric materials are adopted to prepare a temperature sensor, so that the temperature acquisition accuracy can be improved. In addition, the system realizes the data intelligent analysis and the instruction control of the control module, and is operated in the programming manner instead of the single software. Therefore, the system is strong in compatibility, and convenient in personalized setting.