Milk goats is of particular nutritional and economic importance in many parts of the world. This study aimed to define the effect of quaffing dairy goats with linseed oil )10, 20 and 30 mL/head/day) on milk productioncomposition and fatty acids profile. Twenty-four lactating Zaraibi goats at the last weeks of gestation were used. Experimental animals were randomly divided into four equal groups. Result obtained revealed that flaxseed oil supplementation increased milk yield by a mean value of 19.79% as compared with control treatment. Milk fat percentage was higher for goats received 30 mL. flaxseed oil than other treatments, while no remarkable effect of flaxseed oil supplementation on milk protein, lactose and ash contents was detected. Addition of flaxseed oil to goats' diet resulted in reducing saturated fatty acids by a mean value of 13.72% as compared with control sample, however, these decreases may be influenced partially by lactation progress. In contrast, the concentration of unsaturated fatty acids increased with a mean value of 28.32%, with pronounced increases in oleic, linoleic and linolenic acids concentration as compared with control. Moreover, results obtained revealed that ά-linolenic acid (ALA) concentrations achieved greatly affect by flaxseed oil supplementation, where their concentrations varied from 0.2-3.04%. In conclusion, feeding flaxseed to lactating goats can be used as a nutritional strategy to reduce concentrations of short-chain and saturated fatty acids and to increasing long-chain and polyunsaturated fatty acids in milk, as well as to improve milk yield. Consequently, such strategy has a significant effect for human's nutrition and health.