The invention discloses an intelligent control system for fire-fighting water storage and supply in a transformer substation, which is characterized in that: the intelligent control system comprises a water complementing pipeline connected with a water storage pond; a fire-fighting pipe net is provided with a pressurizing device and a data acquisition transmitter; the data acquisition transmitter is electrically connected with a data acquisition module; the data acquisition module is electrically connected with a control device; the control device is electrically connected with a man-machine conversation device; the control device is also electrically connected with at least a group of controlled units; the controlled units comprise at least a group of soft starters electrically connected with the control device and at least a group of fire-fighting pumps electrically connected with the soft starters; and the control device is electrically connected with at least an upper computer by a communication network. The intelligent control system disclosed by the invention has the beneficial effects that: the liquid level data of the water storage pond in the system, including a monitored water level, a practical water level and a warning water level, are effectively detected. The intelligent control system is started by a soft starter and has a function of recording and storing faults.