The invention provides a valve packing sealing structure. The valve packing sealing structure is simple in structure and good in airtightness; by arranging a scale, the compression amount of a packingassembly is reasonably controlled, and the situations that the packing assembly is compressed insufficiently, and consequentially, a valve medium is leaked in the packing position, or the packing assembly is compressed excessively, consequentially, friction force between a valve rod and packing components is excessively large, and a valve is difficult to open and close are avoided; an upper packing group, an intermediate packing group and a lower packing group form multiple seals, the airtightness of packing is improved, and accordingly, the reliability and airtightness of the valve are improved; through the structures including a first packing ring, a second packing ring and a third packing ring, the sealing reliability is further improved, compression force of a gland in the vertical direction is changed into axial force and radial force by means of ring-shaped inclined surfaces, the deformation of the packing groups is increased, and the packing groups are pressed and attached to the valve rod; and through O-rings in a first ring-shaped protrusion and a second ring-shaped protrusion, the sealing reliability is further improved.