The invention provides a method and a device for controlling an intelligent fan, the intelligent fan and a terminal. The method comprises the following specific steps: when the intelligent fan enters a standby state from an operation state, a power supply type of the intelligent fan is judged; if the power supply type is power supply by batteries, a network connecting function of the intelligent fan is closed; and when preset conditions are satisfied, the network connecting function is opened. The method improves the use efficiency of the fan.