The invention discloses a fire-fighting linkage control system for a coal storage yard of a thermal power plant. The fire-fighting linkage control system comprises a monitoring terminal, a plurality of temperature detection modules, a control module, a smog concentration detection module, a temperature analysis module, a control module, a driving module, an execution module and a wireless communication module, wherein the smog concentration detection module, the temperature analysis module, the control module, the driving module, the execution module and the wireless communication module are connected with the control module. A timing unit, a data storage unit, a memory space detection unit and a reset unit are arranged in the temperature analysis module. The temperature in the coal storage yard is detected and sent to the temperature analysis module through the temperature detection modules, once the temperature change exceeds the set range, the control module sends a control instruction to the driving module, the driving module drives the execution module to operate, accordingly fire-fighting control over the coal storage yard is achieved, early prevention of a fire disaster is achieved, the probability of the fire disaster is decreased, financial security is guaranteed, and meanwhile the economic loss is reduced. The fire-fighting linkage control system has the characteristics of being high in detection speed, convenient to control and high in safety.