To provide an electromagnetic heating vessel in which a conductor layer is provided as wide as possible and the conductor layer presents approximately uniform temperature distribution.

A plurality of non-conductive portions 40 are formed in a portion corresponding to a central portion 38c of a conductor layer 36 in the dimension of a width in the direction of a diameter of a coil 38, namely, in a portion where a temperature is most easily elevated on the conductor layer 36 when the center of the conductor layer 36 is located on the axial center of the coil 38. Therefore, even when the area of the conductor layer 36 is made wide as much as possible, the excessive elevation of the temperature in the conductor layer 36 can be appropriately suppressed. Namely, an electromagnetic heating vessel 30 in which the conductor layer 36 is provided as wide as possible and the conductor layer 36 presents approximately uniform temperature distribution can be provided.