The invention discloses liquid formula milk special for weak piglets. The liquid formula milk special for weak piglets is characterized by being made from, formula milk powder and purified water by mixing according to a ratio of 1:3.6-4.4. The liquid formula milk special for weak piglets comprises, by weight percent, 30%-50% of bovine colostrum (in dry powder), 10%-20% of skim milk powder, 10%-20% of lactose, 10%-20% of whey protein concentrate, 2%-5% of mixture of fish oil, coconut oil and emulsifier, 1%-3% of probiotics, 0.5%-1% of carnitine, 0.2%-0.5% of arginine, 0.1%-0.3% of vitamin E, 0.1%-0.2% of yeast polysaccharide, 0.1%-0.2% of lysosome, 0.5%-1% of suckling pig multi-vitamins, and 0.5%-1% of suckling pig trace element composite. The liquid formula milk special for weak piglets has the effects of improving immunity, enhancing stress resistance and disease resistance, promoting digestion, preventing piglet diarrhea, promoting growth and the like. Immunity and growth ability ofthe weak piglets fed with the liquid formula milk special for weak piglets can be improved effectively, and survival rate of the weak piglets can be increased.