The invention relates to a special screw thread joint of a high air-tight seal oil sleeve, which comprises an auxiliary circular bead, a first-level primary seal, a second-level primary seal, a guide surface and a bearing surface sequentially beginning from the front end part, wherein the auxiliary circular bead is a corresponding right-angle structure and has the width of 1.0-1.5mm; the first-level primary seal is a conical surface/conical surface structure, has the length of 4-5mm and the tapering of 1:7-10 and is connected to the auxiliary circular bead and a main circular bead; the main circular bead is a corresponding reverse circular bead structure and has the width of 2-2.5mm, the angle of 15-20 degrees and the transition arc radius of 0.2-0.5mm; the second-level primary seal is a spherical surface/conical surface structure, the arc radius of the spherical surface is 10-20mm, the length of the conical surface is 4-5mm, and the tapering is 1:7-10; the primary seal is connected to the main circular bead and the guide surface of a screw thread, the positive angle of the guide surface is more than 10-15 degrees, and the negative angle of the screw thread bearing surface is less than minus 3 degrees; and the preventive stress corrosion and the sealing property are better than those of a single-level circular bead and a sealing structure.