Appearance of milking robot can be considered the latest technological change in dairy-farms of the world. In Hungary to the present such investment has not been realized yet. The general objective of this study is to estimate the short and long-term economic conditions of this modernization in a complex way through the example of a specific enterprise. In spite of the fact that the analysed technological development indicates improvement in several physical indicators of efficiency (such as specific yield, specific forage-consumption, labour cost and animal welfare), according to financial figures the milking robot technology can not be refunded within a reasonable time. This investment involves significant risk for the analysed farm, which is not worth being implemented under existing conditions. On the basis of the result obtained the second part of the hypothesis that the investment will surely have been refunded within ten years must be refused.