The utility model discloses a single underground pipeline transverse lifting and longitudinal picking protection device. The protection device comprises a first crown beam, a second crown beam, a third crown beam, a fourth crown beam, a first beam, a second beam and a plurality of longitudinal beams. The first crown beam and the second crown beam are located on one side of an underground pipeline, the third crown beam and the fourth crown beam are located on the other side of the underground pipeline, the first crown beam, the second crown beam, the third crown beam and the fourth crown beam are formed at the position below the underground pipeline, the first crown beam and the second crown beam are connected through the first beam in a lap joint mode, the third crown beam and the fourth crown beam are connected through the second beam in a lap joint mode, the two ends of each longitudinal beam are connected with the first beam and the second beam respectively, and the top of each longitudinal beam makes contact with the bottom of the underground pipeline. Therefore, by means of the protection device, during the construction process in the metro section, the underground pipeline can be in a stable state, and the normal life of residents can be ensured.