A sealing packing gland of an output and input shaft of an oil sucking machine is applied to an oil production plant of an oil field and is characterized in that the sealing packing gland comprises two semicircle glands; the two semicircle glands are connected to form a circular gland; the circular gland comprises two semi-ring shaped discs and two semi-ring shaped cylinders; the diameters of the inner holes of the two semi-ring shaped discs and the two semi-ring shaped cylinders are the same as the outer diameter of an output or an input shaft; the outer diameter of the two semi-ring shaped cylinder is the same as the inner diameter of a shaft hole of a reduction gearbox shell body; and bolt holes are uniformly distributed on the two semi-ring shaped discs. The sealing packing gland has the advantages that the sealing packing gland is installed on a reduction gearbox of the oil sucking machine, can press sealing felt tightly, enable the output and input shaft of the oil sucking machine to be better sealed, realize tight sealing of the felt, overcome the leakage phenomena, do not produce oil production and reduce labor intensity of workers in the condition of the oil sucking machine is not stopped.