The invention relates to an abrasive wheel gas lighter which comprises a gas storage body, a gas valve, a fire nozzle, an ignition component and a warping plate, wherein the ignition component comprises an abrasive wheel and flint matched with the abrasive wheel; the gas storage body is provided with a support frame; and the abrasive wheel is rotatablely connected with the support frame through arotating shaft. The abrasive wheel gas lighter is further provided with a cover body capable of covering the fire nozzle, wherein the cover body can be pivoted with a support seat through the rotating shaft and provided with opened and closed positions; the abrasive wheel can be in synchronous rotary arrangement with the cover body around the rotating shaft; the cover body is provided with a propping and press component linked with the cover body; and the propping and press component props and presses against the warping plat to open the gas valve when the cover body is opened. The abrasive wheel gas lighter of the invention has simple structure, relatively simple ignition operation and relatively safe effect on children.