A control circuit of a cycling switch for controlling an electronic equipment includes a switch loop, a first control loop and a second control loop. The switch loop generates a driving signal to drive the electronic equipment. The first control loop is electrically connected with the switch loop and the electronic equipment respectively, and generates a first control signal according to a variation of the driving signal. The second control loop is electrically connected with the first control loop and the electronic equipment respectively. The second control loop has a storage unit which charges and discharges according to the first control signal, so that the second control loop generates a second control signal. The second control signal is inputted to the first control loop and controls the electronic equipment. A control method applied to the control circuit of the cycling switch is also disclosed.