An induction-heating cooker comprising: an outer frame (4; 15) having an opening (4c; 15c) in its upper part and being formed in a bottomed box shape; a top plate (1; 23) that covers the opening (4c; 15c) of the outer frame (4; 15) and on which an object to be heated is placeable; a coil unit (2, 2a, 2b, 2c, 2d) that is arranged below the top plate (1; 23) for induction-heating the object to be heated; a control board that is arranged on an outer frame bottom surface (4b, 15b) and that is arranged below the top plate (1; 23), the control board is held by a control board holding member, wherein the control board supplies high-frequency current to the coil unit (2, 2a, 2b, 2c, 2d); an operation board (3, 16) that is located below the top plate (1; 23) and that is arranged in front of the coil unit (2, 2a, 2b, 2c, 2d), the operation board (3, 16) composes a terminal that accepts operation input from a user, and an operation board holding part (6; 17) that supports and holds the operation board (3; 16) from the lower surface side of the operation board is disposed on an outer frame side surface (4a; 15a) of the outer frame (4; 15), wherein at least a part of a space surrounding the operation board (3; 16) is opened in the horizontal direction inside the outer frame (4; 15); wherein an outer frame throughhole (7; 15e) is disposed on the outer frame side surface (4a; 15a); and wherein one end of the operation board holding part (6; 17) is disposed so as to go through the outer frame throughhole (7; 15e); characterized in that the other end of the operation board holding part (6; 17) is fixed to the operation board (3; 16), and the operation board holding part (6; 17) is configured so that a portion from the one end to the other end is enabled to go through the outer throughhole (7; 15e). an outer frame (4; 15) having an opening (4c; 15c) in its upper part and being formed in a bottomed box shape; a top plate (1; 23) that covers the opening (4c; 15c) of the outer frame (4; 15) and on which an object to be heated is placeable; a coil unit (2, 2a, 2b, 2c, 2d) that is arranged below the top plate (1; 23) for induction-heating the object to be heated; a control board that is arranged on an outer frame bottom surface (4b, 15b) and that is arranged below the top plate (1; 23), the control board is held by a control board holding member, wherein the control board supplies high-frequency current to the coil unit (2, 2a, 2b, 2c, 2d); an operation board (3, 16) that is located below the top plate (1; 23) and that is arranged in front of the coil unit (2, 2a, 2b, 2c, 2d), the operation board (3, 16) composes a terminal that accepts operation input from a user, and an operation board holding part (6; 17) that supports and holds the operation board (3; 16) from the lower surface side of the operation board is disposed on an outer frame side surface (4a; 15a) of the outer frame (4; 15), wherein at least a part of a space surrounding the operation board (3; 16) is opened in the horizontal direction inside the outer frame (4; 15); wherein an outer frame throughhole (7; 15e) is disposed on the outer frame side surface (4a; 15a); and wherein one end of the operation board holding part (6; 17) is disposed so as to go through the outer frame throughhole (7; 15e); characterized in that the other end of the operation board holding part (6; 17) is fixed to the operation board (3; 16), and the operation board holding part (6; 17) is configured so that a portion from the one end to the other end is enabled to go through the outer throughhole (7; 15e).