The invention discloses a high-speed maglev transportation longitudinal-cross beam type steel-concrete composite structure track section, which includes two longitudinal beams arranged symmetrically in the circuit direction and a plurality of cross beams arranged perpendicular to the circuit direction and between the longitudinal beams. Each longitudinal beam includes a sliding top plate (8), a positioning steel plate (14) arranged opposite to and flush with the sliding top plate (8) and a concrete longitudinal beam (6) arranged between the sliding top plate (8) and the positioning steel plate(14), the positioning steel plates (14) are embedded in the concrete longitudinal beams (6) through vertical tension rebars, and each cross beam comprises a concrete cross beam (4) and track sectionfixed steel components arranged on the two sides of the concrete cross beam (4) in pairs. The track section is of a steel-concrete composite structure, the track section structure is of a longitudinal-cross beam type structure, during installation of the track section, precise positioning and adjustment of track alignment and elevation can be realized through a post-pouring rail support platform,and during the operation and maintenance period, the track section elevation can also be conveniently adjusted through fasteners.