An ultrasound system capable of displaying and manipulating an ultrasound image and an exterior image, and a method for operating the same are disclosed. The system includes an ultrasound diagnosis unit including a probe which sends an ultrasound signal to a target and receives a reflected ultrasound signal from the target, an exterior image storage which stores exterior image data, an image processor which forms an ultrasound image and an exterior image, a user input unit operated to manipulate and display the reflected ultrasound signal and the exterior image data, a central processor which controls the ultrasound diagnosis unit and the exterior image storage to allow the image processor to manipulate and form the ultrasound and exterior images, and a display unit which displays the ultrasound and exterior images, a manipulated state of the ultrasound and exterior images, and an operating state of the central processor.