A control circuit and a terminal are provided. The control circuit includes a detector, a current-voltage conversion circuit and a control signal generation circuit. The current output end of the detector is connected with the current input end of the current-voltage conversion circuit. The voltage output end of the current-voltage conversion circuit is connected with the voltage input end of the control signal generation circuit. The signal input end of the control signal generation circuit outputs a control signal. The detector detects a state of motion of a detected object and generates at least one current signal according to the state of motion of the detected object. The current-voltage conversion circuit converts the at least one current signal transmitted by the detector to at least one voltage signal. The control signal generation circuit generates the control signal based on a variation rule of the at least one voltage signal transmitted by the current-voltage conversion circuit and a preset control signal generation strategy, and output the control signal.