The invention discloses an intelligent control system for indoor temperature of a capacitor. The intelligent control system comprises an environment acquisition system, an automatic control system, anelectric appliance control system and a ventilation system, wherein the environment acquisition system is used for acquiring indoor environmental data of the capacitor; the automatic control system is used for receiving and judging whether the environmental data transmitted by the environment acquisition system is greater than a first threshold value set by the automatic control system or less than a second threshold value set by the automatic control system; the electric appliance control system is used for receiving a judgment result transmitted by the automatic control system and controlling an operation state of a fan; and the ventilation system is used for supplying the air outside the capacitor into the interior of the capacitor under the action of the electric appliance control system. According to the intelligent control system for the indoor temperature of the capacitor, on the one hand, the indoor temperature of the capacitor is automatically monitored, and on the other hand, the fan is automatically started and stopped according to the indoor temperature, so that the indoor environment temperature always meets the requirements.