The invention belongs to the technical field of mechanical structures, and specifically discloses a two-dimensional moving device arranged in a slender round hole. According to the technical solution, a single motor driven two-dimensional translation device comprises an outer frame unit (1), a middle unit (2), an inner cavity unit (3), a vertical spring (18), a horizontal spring (30), a belt lead screw motor (19) and a guide rod (23). The outer frame unit is fixed, and the middle set and the inner cavity unit float, so that the device is convenient to install, adjust and detach; a pre-compression spring used for resetting well replaces another path of power; by adopting electric drive, remote operation is facilitated; under the small imaging plane size of a small CCD (Charge Coupled Device) camera, the technical performance of a wide view field lens is sufficiently utilized; the device having small size is suitable for space limited occasions; and the device is wide in service range, is not limited to translation of the CCD camera, can cover similar demands, and can carry other sensor.