The invention relates to the technical field of 
animal feed, in particular to urinary tract 
health maintenance nutritional health-care food for dogs and cats and a preparation method of the food. The health-care food consists of the following components in percentage by 
mass: 10 to 30 percent of chickens, 10 to 50 percent of grains, 5 to 20 percent of vegetable 
protein, 5 to 20 percent of 
chicken fat, 5 to 15 percent of 
egg powder, 0.5 to 5 percent of Indian Buead, 0.5 to 5 percent of bighead atractylodes 
rhizome, 0.5 to 5 percent of 
semen plantaginis, 0.5 to 5 percent of rhizoma alismatis, 0.5 to 5 percent of akebiaquinata, 0.5 to 5 percent of rhizoma atractylodis, 0.5 to 5 percent of mangnolia 
officinalis. 0.5 to 5 percent of 
ophiopogon japonicus, 0.5 to 5 percent of 
pericarpium citri reticulatae, 0.5 to 5 percent of liquorice, 1 to 5 percent of 
spinach, 1 to 5 percent of carrot, 0.5 to 5 percent of beer 
yeast, 0.2 to 0.5 percent of 
fructooligosaccharide, 0.5 to 5 percent of 
vitamin and 0.5 to 5 percent of mineral. The invention starts with the nutritional diet for maintaining the urinary tract health by aiming at the inducement of 
urinary tract diseases of the dogs and cats, and selects a fully-nutritional special formula prepared by the natural eatable plants so as to maintain the urinary tract health of the dogs and cats. After the food is fed, the technology provided by the invention takes effect on maintenance of the urinary tract health of the dogs and cats.