A computed tomography (CT) apparatus wireless controller has a CT main control circuit and a wireless main control circuit. The wireless main control circuit receives a control signal from a wireless secondary controller, and subjects the control signal to a validity check according to an identifier of the wireless secondary controller carried in the control signal when the control signal passes the check, it is supplied to the CT main control circuit from the wireless main control circuit. The CT main control circuit performs corresponding operation control according to the control signal.