The invention discloses a high-anti-torque full-sealing drill pipe threaded joint, which comprises an external threaded joint and an internal threaded joint, wherein the internal threaded joint main end surface of the internal threaded joint is an annular surface with an inclination angle; an internal threaded end hole part is a cone hole; an external ledge surface on the external threaded joint is an annular surface with an inclination angle; a cone pipe threaded base part of the external threaded joint is an oval arc surface; the semi-major axis length of the oval cross section of the oval arc surface is b; the minor axis length of the oval cross section of the oval arc surface is 2a; a ratio 2a/b of the minor axis length 2a to the semi-major axis length b equals to the conicity of the cone hole of the internal threaded end hole part; and the screw pitch T2 of front section external screw threads and front section internal screw threads is greater than or equal to the screw pitch T1 of back section external screw threads and back section internal screw threads. The high-anti-torque full-sealing drill pipe threaded joint has the advantages that the anti-torque capability of a threaded drill pipe joint can be improved; the matching of a sealing surface is reliable; the sealing contact elastic deformation is stable; and the sealing is tight. The high-anti-torque full-sealing drill pipe threaded joint is very applicable to exploration and mining of oil and gas deep wells, ultra-deep wells and complicated wells.