A griddle device comprising: a housing having an opened top surface; a burner provided in the housing; a frame disposed along an opened circumference of an upper end of the housing and having a frame opening; a heating plate coupled to the frame to cover a portion of the frame opening and providing a cooking surface heated by the burner; and a pocket part configured to cover a remaining portion of the frame opening at one end of the heating plate and recessed to provide a space in which foreign substances are accommodated, wherein the pocket part is mounted to be connected between the frame and the heating plate, wherein the griddle device further comprises: a barrier partitioning an inner space of the housing into one space in which the burner is accommodated and the other space in which the pocket part is accommodated, characterized in that the barrier comprises: a partition part vertically extending from a bottom surface of the housing; an inclined part inclinedly extending from an upper end of the partition part; and a contact part bent from an upper end of the inclined part to support a bottom surface of the heating plate, wherein, when the heating plate is mounted, the inclined part is elastically deformed to allow the contact part to press and support the heating plate, wherein an upper end of the barrier is closely attached to the bottom surface of the heating plate in the pressed state. a housing having an opened top surface; a burner provided in the housing; a frame disposed along an opened circumference of an upper end of the housing and having a frame opening; a heating plate coupled to the frame to cover a portion of the frame opening and providing a cooking surface heated by the burner; and a pocket part configured to cover a remaining portion of the frame opening at one end of the heating plate and recessed to provide a space in which foreign substances are accommodated, wherein the pocket part is mounted to be connected between the frame and the heating plate, wherein the griddle device further comprises: a barrier partitioning an inner space of the housing into one space in which the burner is accommodated and the other space in which the pocket part is accommodated, characterized in that the barrier comprises: a partition part vertically extending from a bottom surface of the housing; an inclined part inclinedly extending from an upper end of the partition part; and a contact part bent from an upper end of the inclined part to support a bottom surface of the heating plate, wherein, when the heating plate is mounted, the inclined part is elastically deformed to allow the contact part to press and support the heating plate, wherein an upper end of the barrier is closely attached to the bottom surface of the heating plate in the pressed state. a barrier partitioning an inner space of the housing into one space in which the burner is accommodated and the other space in which the pocket part is accommodated, characterized in that the barrier comprises: a partition part vertically extending from a bottom surface of the housing; an inclined part inclinedly extending from an upper end of the partition part; and a contact part bent from an upper end of the inclined part to support a bottom surface of the heating plate, wherein, when the heating plate is mounted, the inclined part is elastically deformed to allow the contact part to press and support the heating plate, wherein an upper end of the barrier is closely attached to the bottom surface of the heating plate in the pressed state. a partition part vertically extending from a bottom surface of the housing; an inclined part inclinedly extending from an upper end of the partition part; and a contact part bent from an upper end of the inclined part to support a bottom surface of the heating plate, wherein, when the heating plate is mounted, the inclined part is elastically deformed to allow the contact part to press and support the heating plate, wherein an upper end of the barrier is closely attached to the bottom surface of the heating plate in the pressed state.