Construction of new carbon therapy facility has started at Gunma-University Heavy-Ion Medial Center, GHMC. The maximum energy of accelerated carbon ions is designed to be 400 MeV/u so that the residual range exceeds 25 cm in water. The detailed design of the facility is based on design and R&D studies performed at National Institute of Radiological Sciences. The facility will have three treatment rooms and one treatment room for future developments. The construction will be completed in FY2008 and beam tests are scheduled in 2009.