The present invention relates to an ultrasound system and a method of providing orientation help (OH). The ultrasound system comprises: an ultrasound data acquisition unit including an ultrasound probe for transmitting ultrasound signals to a target object and receiving ultrasound echo signals reflected from the target object, the ultrasound data acquisition unit being configured to acquire ultrasound data based on the ultrasound echo signals, the ultrasound data acquisition unit being further configured to detect an orientation and a scanning direction of the ultrasound probe and a processor for forming a volume data based on the ultrasound data and forming an orientation help (OH) view showing a spatial orientation of volume data on a display region, the OH view including a probe orientation marker indicating the detected orientation of the ultrasound probe and a scanning direction marker indicating the detected scanning direction.