Both Bao Le An and Mamma are a kind of intestinal microecological preparation with the effect of improving the intestinal microecological environment. However, there are certain differences between these two drugs. Firstly, Pao Le An has a better taste and children like to eat it; Mamma has an unpleasant smell and many children do not like the taste. Secondly, the gastric acid passage rate of Bao Le An is very high, able to reach more than 95%; while Mamma is not able to reach this level. The third, the main component of Pao Le An is Clostridium typhimurium; while the main component of Mamma Ai is Bacillus subtilis and Enterococcus faecalis, of which Bacillus subtilis and Enterococcus are conditional pathogenic bacteria, which may be potentially pathogenic to the body, while Clostridium typhimurium is not harmful to the body, which is a probiotic that can be safely given to children to eat.