In this research, the relationships between udder types and udder characteristics, milk yield and milk components was to investigate classifying primiparous Anatolian merino sheep reared in Altinova Farm State according to udder types. 59 heads of sheep for udder traits and 50 heads of sheep for milk yield and components was used in this study. From udder characteristics, the height of udder from the floor (HUF), back height of udder (BHU), front height of udder (FHU), length of left udder teat (LUT-L), length of right udder teat (LUT-R), diameter of the left udder teat (DUT-L), diameter of the right udder (DUT-R), distance between udder teats (DBUT) and udder circumference (UC) were found as 34.30, 18.86, 9.73, 2.73, 2.64, 1.27, 1.32, 16.09 and 46.04 cm, respectively, and also the number of udder teats (NUT) was found as 2.07. Lactation milk yield, lactation length and test day milk yield of primiparous Anatolian merino sheep were found as 72.84 L, 137 day and 0.530 L, and also solids-non-fat, fat, protein, lactose and total solids were determined as 11.14±0.110, 7.3810.383, 5.2410.030, 4.9110.027 and 0.9810.005, respectively. As a results, HUF, FHU, LUT-R (P<0.05) and DBUT (P<0.001) from udder characteristics of primiparous Anatolian merino sheep significantly influenced by the udder types, variation between the udder types in lactation mik yield was found as high and it significantly influenced by the udder types (P<0.05), and also the effect of udder types on milk components was found to be statistically insignificant (P>0.05). [ABSTRACT FROM AUTHOR]