According to different probiotics suitable for different age groups, products for children and adults aged 0-2 years, 2-8 years, over 8 years and over 60 years were customized by selecting bacteria according to age. Adult probiotics are rich in 9 different strains, which can relieve irritable bowel syndrome, improve lactose intolerance, prevent diabetes and control weight, and absorb harmful substances to enhance resistance. It has a good relieving effect on gastrointestinal problems such as diarrhea and indigestion.