The invention provides a fuel gas adjusting mechanism of an improved integrated stove and belongs to the technical field of integrated stoves. The fuel gas adjusting mechanism of the improved integrated stove solves the problem that the fuel gas ventilatory capacity in the prior art cannot be adjusted. According to the fuel gas adjusting mechanism of the improved integrated stove, the integrated stove comprises a cooking bench and a stove body arranged under the cooking bench, wherein a pot rack is fixed to the cooking bench, a combustor is arranged at the center of the bottom of the pot rack,and an air inlet is formed in the bottom of the combustor; the fuel gas adjusting mechanism comprises an inlet box formed in the stove body, the inlet box is located right below the combustor, the inlet box is internally provided with a cavity, an air outlet hole is formed in the top of the inlet box, an air inlet hole is formed in the bottom of the inlet box, an adjusting disc is also arranged between the inlet box and the combustor, a plurality of ventholes are formed in the adjusting disc, the outer diameters of two ends of each venthole are equal, different ventilating pipelines are fixedin the ventholes, and the outer diameter of each ventilating pipeline and the inner diameter of each venthole are fixed. The fuel gas adjusting mechanism of the improved integrated stove provided bythe invention has the advantage of adjusting the fuel gas ventilatory capacity.