An induction heating device comprising: a top plate on which a cooking vessel containing an object to be cooked is placeable; a plurality of heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k, 3m,3n,3p,3q,3r,3s,3t) arranged closely to each other and generating a magnetic field for heating the cooking vessel; an inverter circuit that applies current to each heating coil of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t); a heating control unit that controls the inverter that applies current to each heating coil of the plurality of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t) to control a heating power of the cooking vessel; a cooking vessel detection unit that performs a detection operation of a cooking vessel for detecting whether the cooking vessel is placed over the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t); an operation unit (6,6a,6b,6c) that displays a detection result of the cooking vessel detection unit; and a priority determination unit that determines for each heating coil of the plurality of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k, 3m,3n,3p,3q,3r,3s,3t) a priority of a heating coil for which the cooking vessel detection unit detects whether the cooking vessel is placed thereon, wherein the cooking vessel detection unit that performs for each of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t) a detection operation of a cooking vessel in terms of whether the cooking vessel is placed thereon, based on the priority determined by the priority determination unit, characterized in that the priority determination unit includes a detection auxiliary unit that detects an object on the top plate, before the inverter circuit applies current to each heating coil of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t) such that the cooking vessel detection unit performs detection operation of the cooking vessel, the priority determination unit determines a priority of a heating coil for which the cooking vessel detection unit detects whether the cooking vessel is placed on the top plate, wherein if the detection auxiliary unit detects an object, the cooking vessel detection unit causes the inverter to start applying current to the heating coils around the detected object to perform the detection operation of a cooking vessel in terms of whether the cooking vessel is placed over the heating coils around the detected object. a top plate on which a cooking vessel containing an object to be cooked is placeable; a plurality of heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k, 3m,3n,3p,3q,3r,3s,3t) arranged closely to each other and generating a magnetic field for heating the cooking vessel; an inverter circuit that applies current to each heating coil of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t); a heating control unit that controls the inverter that applies current to each heating coil of the plurality of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t) to control a heating power of the cooking vessel; a cooking vessel detection unit that performs a detection operation of a cooking vessel for detecting whether the cooking vessel is placed over the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t); an operation unit (6,6a,6b,6c) that displays a detection result of the cooking vessel detection unit; and a priority determination unit that determines for each heating coil of the plurality of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k, 3m,3n,3p,3q,3r,3s,3t) a priority of a heating coil for which the cooking vessel detection unit detects whether the cooking vessel is placed thereon, wherein the cooking vessel detection unit that performs for each of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t) a detection operation of a cooking vessel in terms of whether the cooking vessel is placed thereon, based on the priority determined by the priority determination unit, characterized in that the priority determination unit includes a detection auxiliary unit that detects an object on the top plate, before the inverter circuit applies current to each heating coil of the heating coils (3,3a,3b,3c,3d,3e,3f,3g,3h,3i,3j,3k,3m,3n,3p,3q,3r,3s,3t) such that the cooking vessel detection unit performs detection operation of the cooking vessel, the priority determination unit determines a priority of a heating coil for which the cooking vessel detection unit detects whether the cooking vessel is placed on the top plate, wherein if the detection auxiliary unit detects an object, the cooking vessel detection unit causes the inverter to start applying current to the heating coils around the detected object to perform the detection operation of a cooking vessel in terms of whether the cooking vessel is placed over the heating coils around the detected object.