Wireless on and off controller for split electrical devices

The invention discloses a wireless on and off controller for split electrical devices. The wireless controller comprises a main unit (1), a first slave unit (21), a second slave unit (22) and a third slave unit (23). By adopting the split design and timing and manual control, mounting and control are flexible, multiple electrical devices, especially electrical devices with remote controllers, such as home appliances like televisions, air conditioners, can be timed to be on and off independently. By setting time to turn on and off the electrical devices such as televisions and air conditioners at fixed time, activity scenes of people can be simulated indoors, and theft can be prevented.