This experiment was conducted to investigate effect of brine mineral water (BMW) on growth performanceand properties of blood in weaning pigs. Treatments allotted were 0% (general water), 2%, 3% and 5% BMW.In growth trial, a total of 36 weaning pig barrows [(Landrace×Yorkshire)×Duroc] weaned after 21 days withan average initial weight of 5.38±0.89 kg were used. Each treatment had 3 replications of 3 pigs per pen ina randomized complete block design. Weaning pigs were investigated for growth performance, completeblood corpuscle count and blood biochemical assay. In results, growth performance of 2% and 3% treatmentgroups were significantly higher than other groups (p<0.05). In addition, high density lipoprotein cholesterolwas significantly (p<0.05) higher in 2% group than other treatment groups. On the other hand, meancorpuscular volume of supplement of BMW treatment groups were significantly (p<0.05) increased thancontrol. Therefore, this study suggests that supplementation of BMW could improve growth performance andlevel of red blood cell in weaning pigs.