During the survey, 25 dairy farms were examined in East Hungary in Hajdú-Bihar (H-B) County between 2017 and 2018 by methodical observation and oral interviews with the farm managers, about the spread of Precision Livestock Farming (PLF) technologies. Among Holstein Friesian dairy farms in the County 60% were questioned, and the representativity was above 47 percent ins each size category. Nine precision farming equipment were examined on the farms: milking robot or robotic carousel milking parlour, cattle management software, RFID based animal identification system, individual daily milk yield recording, cow heat detection – activity measurement system, automatic selection gates, individual milk conductivity – somatic cell count measurement, individual fodder distribution for cows, calf milk feeding automat. The highest spread among PLF technologies was cattle management software with 96%, than RFID identification system and milk yield recording with 36% spread. There were no instance for robotic milking and automatic fodder distribution for cows. Comparing the distribution with farm size, there is a tendency of a higher spread in PLF technologies.