Abstract: An error-proof operating system for a portable gas hob includes a gas tank cavity partition having two ends respectively fixed to a front panel and a back panel, wherein a bounce limiting device is provided on the gas tank cavity partition, the bounce limiting device is connected to an actuating rod, the actuating rod is rotatably connected to the gas tank cavity partition, one end of the actuating rod penetrates through the front panel, and a top of the bounce limiting device is not lower than a bearing end for bearing a liquid holding tray. The beneficial effect of the present invention is: by providing the bounce limiting device and using same in conjunction with the liquid holding tray, user's operation is standardized to avoid dangerous accidents caused by incorrect operating.