Disclosed is a method for inductively controlling an in-car safety system device.A transmitting end is placed on the hand of a child in a sleeved mode, once the temperature inside a car is increased or the oxygen content is decreased, the child will feel anxious and shakes the arm; when the child shakes the arm three times continuously within three seconds, a transmitting module transmits a signal, a receiving module receives the signal and then forwards the signal to a control module, the control module enables a power main switch to be turned on, an engine is started, a second signal line starts an air conditioner to work after detecting that the engine works, so that the temperature inside the car is decreased, and accidents are reduced; in addition, when the car is in the neutral gear position, the engine cannot be started, the control module commands a motor to lower a window, the car can generate air flowing, and life safety of a kid or an infant inside the car is ensured.