The low aspect ratio Tokamak is proposed for the driver of a transmutation reactor. The main parameters of the reactor core, neutronic analysis of the blanket are given. The neutron wall loading can be lowered from the magnitude order of 1 MW/m² to 0.5 MW/m² which is much easier to reach in the near future, and the transmutation efficiency (fission/absorption ratio) is raised further. The blanket power density is about 200 MW/m³ which is not difficult to deal with. The key components such as diverter and center conductor post are also designed and compared with conventional Tokamak. Finally, by comparison with the other drivers such as FBR, PWR and accelerator, it can be anticipated that the low aspect ratio transmutation reactor would be one way of fusion energy applications in the near future.