A transverse-longitudinal perpendicular automatic adjusting apparatus used for a cutting machine is disclosed. The automatic adjusting apparatus comprises a cross beam (8), a driving trolley (5), a driven trolley (7), a rotating shaft (1), a rolling bearing (2), a driving connecting plate (3) and a disc spring (4). The cross beam (8) is a drawn cross beam. The driving connecting plate (3) is connected to a bottom surface of the cross beam (8). A bottom surface of the cross beam is rigidly connected with a driven connecting plate (6), which is connected with the driven trolley (7). The apparatus ensures stable operation and is inexpensive. The apparatus is easy to adjust, install and manufacture.