The present invention provides a safety control device of gas oven, which is connected with an oven door of the gas oven, a burner and a gas pipeline; it comprising: a main body and a control unit, of which the main body is provided with a gas inlet and several gas outlets; the control unit is flexibly set into the main body and connected with the oven door, so as to control if the gas inlet is connected with the gas outlet; with this design, it enables gas supply to the oven and guarantee its operating safety by controlling the oven door.