The present invention relates to an ultrasound therapy system using high-intensity focused ultrasound. The ultrasound therapy improves ultrasound and heat release characteristics and provides an ultrasound probe which easily performs manufacturing and maintenance processes. According to the present invention, a housing is recessed on the inward side around the upper-part edge. A plurality of mounting holes is uniformly formed from the outside at a constant radius to the edge in the center of the upper part. A plurality of probe units is respectively installed in the plurality of mounting holes to form a sphere on the upper part of the housing. And a grounding film covers the sphere which the plurality of probe units forms.