The present invention relates to a cortisol production induction device for anti-stress, and a control method thereof. According to a first aspect of the present invention, there is provided a servo motor comprising: a servomotor used in connection with a curtain to express a virtual opening of a window； RGB LEDs used to express virtual sunlight irradiation； A 7-segment display device used for indicating the flow of time； A timer / counter for providing current time information going to a wake-up time； Segment display device, the current time information is received from the timer / counter and displayed on the 7-segment display device. When the current time is input to the 7-segment display device, The RGB LED is controlled to be turned ON at a minimum brightness corresponding to the first intensity among the illuminance divided by the first to n-th intensity (n is a natural number of 2 or more), and the end point of the first time interval (end segment display device to the n-th intensity, and when the current time output to the 7-segment display device is the end point of the first time interval, An MCU for controlling rotation of the servomotor in a forward direction to open the curtain； And a cortisol production inducing device for anti-stress. According to a second aspect of the present invention, there is provided a method for controlling an air conditioner, A second step of the MCU receiving the current time information from the timer / counter and initiating the display of the current time information by controlling the 7-segment display device； Segment display apparatus, the illumination output of the RGB LED is set to a minimum value corresponding to the first intensity among the illuminance divided by the first to n-th intensity (n is a natural number of 2 or more) Controlling the RGB LED to be turned ON in brightness so as to start adjusting the brightness of the RGB LED to rise to the nth intensity from the wake-up time to the end-point of the first ti
