The invention provides a fuel gas adjusting mechanism of an integrated cooker, and belongs to the technical field of integrated cookers. The problem that in the prior art, the fuel gas throughput cannot be adjusted is solved. According to the fuel gas adjusting mechanism of the integrated cooker, the integrated cooker comprises a cooking bench and a cooker body arranged under the cooking bench. A pot rack is fixed to the cooking bench, a burner is arranged in the center of the bottom of the pot rack, and a gas inlet is formed in the bottom of the burner. The fuel gas adjusting mechanism comprises a gas inlet tank arranged in the cooker body, the gas inlet tank is located under the burner and internally provided with a cavity, a gas outlet is formed in the top of the gas inlet tank, and a gas inlet is also formed in the bottom of the gas inlet tank. An adjusting disc is further arranged between the gas inlet tank and the burner and provided with a plurality of vent holes, the outer diameters of the two ends of each vent hole are identical, different vent pipelines are fixed in the vent holes, the outer diameter of each vent pipeline and the inner diameter of the corresponding vent hole are relatively fixed, and the vent pipelines are different in inner diameter. The fuel gas adjusting mechanism has the advantage of being capable of adjusting the fuel gas throughput.