NOVELTY - The apparatus (10) has a top heating portion (14) arranged at an upward side of a crucible (20) of bottomed cylindrical shape. A lower heating portion (30) is arranged at the downward side of the crucible. The lower heating portion is provided with a base (31) that generates an electric current with a high frequency heating coil (32) positioned below the base such that self-heating of base is performed. A heat insulation sheet (38) is provided between the heating coil and base.    USE - Manufacturing apparatus of polycrystal silicon ingot for use in manufacture of solar cell module.    ADVANTAGE - The aggregated-form silicon raw material inserted in the crucible, can be melted efficiently. The production efficiency of the polycrystal silicon ingot is improved. The manufacturing cost of the polycrystal silicon ingot is reduced, and the service lifetime of the high frequency heating coil can be prolonged. The time and power required for melting of silicon raw material, can be restrained.    DETAILED DESCRIPTION - A coil supporting section approaches or separates the high frequency heating coil with respect to a bottom face portion (20A) of crucible. The heating coil has a center portion heating region that heats the center portion of bottom face of crucible, and a peripheral portion heating region that heats the peripheral portion of bottom face of crucible. An INDEPENDENT CLAIM is included for manufacturing method of polycrystal silicon ingot, which involves inserting a silicon raw material in the crucible. The silicon raw material is melted, to produce a silicon melt solution. The silicon melt solution is cooled from the bottom face side of the crucible, to perform unidirectional solidification of silicon melt solution. The polycrystal silicon ingot is cooled in the crucible. The base is cooled with a cooling medium flowing inside the heating coil. The heat removal from the periphery of crucible is prevented, by supplying electricity to peripheral portion heating region.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic sectional view of the manufacturing apparatus of polycrystal silicon ingot.    Manufacturing apparatus of polycrystal silicon ingot (10)    Top heating portion (14)    Crucible (20)    Bottom face portion of crucible (20A)    Lower heating portion (30)    Base (31)    High frequency heating coil (32)    Heat insulation sheet (38)