The present invention relates to a multi-purpose radiation therapy system. The radiation therapy system comprises a base, a treatment couch, a rotatable gantry, and at least two radiotherapeutic apparatuses. The treatment couch and the rotatable gantry are arranged on the base. The at least two radiotherapeutic apparatuses include at least one focused radiotherapeutic unit with multi-source and at least one intensity modulated radiotherapeutic unit, and are together installed on the rotatable gantry movably.
