Disclosed are an ultrasound system and method for determining an object, for example, an artery or a vein, and provide object information corresponding to a position of the object. The ultrasound system includes: an ultrasound probe that transmits an ultrasound signal to a body comprising an object, and receives an ultrasound echo signal reflected from the body to generate a reception signal, an ultrasound data acquiring unit that acquires ultrasound data corresponding to the object in the body by using the reception signal, a processing unit that generates Doppler data by using the ultrasound data, analyzes the Doppler data to detect the object, and generates object information corresponding to a position of the detected object, and an object information providing unit that outputs the object information.
