To obtain a sheet inversion apparatus which makes printing on the front face and back face of a sheet by one satellite type printing machine itself and does not cause a direction error, etc., when the inversion action of the sheet is unnecessary.

In the sheet inversion apparatus, a plurality of chain gripper means (15 and 17) are installed approximately in parallel between a number of printing units (9) arranged in the shape of satellites around a common impression cylinder (1), and the gripper means (15 and 17) are connected by an inversion cylinder (16).