During April to November 2013, primary and secondary data collection was performed at dairy cooperatives and milk collecting stations locating in the dairy cattle raising areas in many provinces of Thailand, including Chiang Mai, Saraburi, Srakaew, Khon Kaen, Nakornratchasima, Chaiyapoom, Udonthani, Nongbualampu, Buriram Surin and prachuapkhirikhan. In-depth interviewing with the farmers raising male dairy calves was also conducted in the provinces with high number of cattle, such as Saraburi, Lopburi, Nakornratchasima, Ratchaburi Srakaew and Chiang Mai. The data were analyzed for the economical feasibility of fattening male dairy calves. In general, because it is laborious and unworthy enough, most farmers rarely fatten male dairy newborns, except those of Chokchai Farm, Kumchareon Farm and groups of farmers in Mooban Langkhao, Tambon Muaklek, Amphur Muaklek, Saraburi. Dairy farmers of the northeastern provinces may keep 1-2 male dairy cattle per farm with a purpose of money saving of which the animal will be sold off in a high price as in present. The economical feasibility was conducted through the in-depth interviewing with the farmers who are raising male dairy cattle. Information regarding the reason, raising pattern, feeding, raising duration and selling pattern was collected. The income was calculated from selling of the newborn, months of fattening, number of cattle and income per cattle. The cost was derived from land use, cattle house, cost of the newborn, feed, labor, vaccines and medication, etc. The breakeven analysis could show that the breakeven point for small farm is to fatten 5 male dairy cattle for 7 months to gain a benefit in the amount of 530 Baht per animal. But for the medium and large farms, farmers have to fatten 9 cattle for 15 months to gain 10,994 Baht per animal.