A wireless monitoring method is implemented through a plurality of wireless monitor devices. Each of the plurality of wireless monitor devices includes a state detection unit to produce a state data, a micro control unit and a communication module. To implement the wireless monitoring method, the wireless monitoring device gets a device identification code of another wireless monitoring device in a connection range thereof, and judges whether the device identification code is stored therein and belongs to a monitor group. If the judging outcome is positive, the wireless monitoring device gets another state data of the another wireless monitoring device. After judging the state data and the another state data meet a state control condition, at least one control signal is output to trigger at least one electronic device.