Machine for arranging objects (T, T1, T2) comprising a first end (Te) and a projecting edge (Tb) arranged in proximity to said first end (Te), in an alternate manner along single file rows, comprising: - first transportation means (1, 31) for transporting a first group of said objects and second transportation means (2, 32) for transporting a second group of said objects; - first moving means suitable for receiving said objects of said first group from said first transportation means and for moving said objects belonging to said first group in an anti-clockwise direction along a first arc of circumference defined on a first plane; - second moving means suitable for receiving said objects of said second group from said second transportation means and for moving said objects belonging to said second group in a clockwise direction along a second arc of circumference defined on a second plane parallel to said first plane; - collecting and dropping means suitable for receiving said objects of said first group from said first moving means and said objects of said second group from said second moving means and for dropping them along the same direction, preferably perpendicular to the ground, said collecting and dropping means comprising first rotation means suitable for rotating said objects of said first group in a clockwise direction along a third arc of circumference while falling, so that, at the end of said rotation, said objects do not rest on said first end (Te), and second rotation means suitable for rotating said objects of said second group in an anti-clockwise direction along a fourth arc of circumference while falling, for example so that, at the end of said rotation said objects no longer rest on said first end (Te), said third arc of circumference and said fourth arc of circumference being defined on a plane perpendicular with respect to said first plane and to said second plane, so as to stack said objects (T, T1, T2) on top of one another in an alternate manner along single file rows. - first transportation means (1, 31) for transporting a first group of said objects and second transportation means (2, 32) for transporting a second group of said objects; - first moving means suitable for receiving said objects of said first group from said first transportation means and for moving said objects belonging to said first group in an anti-clockwise direction along a first arc of circumference defined on a first plane; - second moving means suitable for receiving said objects of said second group from said second transportation means and for moving said objects belonging to said second group in a clockwise direction along a second arc of circumference defined on a second plane parallel to said first plane; - collecting and dropping means suitable for receiving said objects of said first group from said first moving means and said objects of said second group from said second moving means and for dropping them along the same direction, preferably perpendicular to the ground, said collecting and dropping means comprising first rotation means suitable for rotating said objects of said first group in a clockwise direction along a third arc of circumference while falling, so that, at the end of said rotation, said objects do not rest on said first end (Te), and second rotation means suitable for rotating said objects of said second group in an anti-clockwise direction along a fourth arc of circumference while falling, for example so that, at the end of said rotation said objects no longer rest on said first end (Te), said third arc of circumference and said fourth arc of circumference being defined on a plane perpendicular with respect to said first plane and to said second plane, so as to stack said objects (T, T1, T2) on top of one another in an alternate manner along single file rows.