Abstract: The experiment was carried out under irrigated conditions in Faculty of Agriculture of Ataturk University, during 1999-2001. Different harvest management treatments were imposed on alfalfa in autumn of 1999 and 2000. Three cutting times (15 September, 1 October and 15 October) and 4 stubble heights (0, 5, 10 and 15 cm) were imposed for determination of suitable autumn harvest management. Alfalfa hay yield, plant height and stem number of meter square were measured in 2000 and 2001. According to the mean of two years data, alfalfa should be cut at 1 October with 10 cm stubble height in Erzurum conditions.