The invention discloses an energy-saving method of a touchpad remote controller. The method includes the following steps: S1. a remote controller is turned on to activate a touchpad, and the remote controller enters a working mode; S2. if a touch event occurs in a period T1 of the working mode, the remote controller processes the touch event and maintains the working mode, and otherwise enters a shallow dormancy mode; S3. if a touch event occurs in a period T2 of the shallow dormancy mode, the remote controller processes the touch event and enters the working mode, and otherwise enters a deep dormancy mode; and S4. if a touch event occurs in a period T3 of the deep dormancy mode, the remote controller processes the touch event and enters the working mode, and otherwise maintains the deep dormancy mode. The energy-saving method of the touchpad remote controller effectively reduces standby power consumption, is energy-saving and environment-friendly, and the touchpad can be awakened at any time and enters the working mode while low power consumption is maintained.