The invention relates to porridge of macrostem onion, cassia twig and peach kernel with Chinese herbs and a preparation method thereof. The porridge of the macrostem onion, the cassia twig and the peach kernel with the Chinese herbs can give full play to the properties of traditional Chinese medicines, prevents degeneration to keep the curative effect and has convenient taking and simple preparation. The porridge of the macrostem onion, the cassia twig and the peach kernel with the Chinese herbs is prepared by decocting the following 15 traditional Chinese medicines: 20 grams of walnut kernel, 15 grams of snakegourd fruit, 15 grams of caramel, 15 grams of ophiopogon root, 10 grams of Chinese date, 10 grams of arillus longan, 9 grams of black sesame seed, 3 grams of macrostem onion, 3 grams of trogopterus dung, 3 grams of safflower, 3 grams of radix salviae miltiorrhizae, 3 grams of cassia twig, 2 grams of turmeric, 2 grams of peach kernel and 2 grams of senega; the preparation method of the porridge of the macrostem onion, the cassia twig and the peach kernel with the Chinese herbs comprises the following several steps: (1) putting the 10 traditional Chinese medicines of the macrostem onion, the trogopterus dung, the ophiopogon root, the safflower, the radix salviae miltiorrhizae, the cassia twig, the turmeric, the peach kernel, the senega and the snakegourd fruit into 1500 milliliters of clear water, boiling by using strong fire firstly, then decocting for 40 minutes by using slow fire and taking clarified liquor; (2) putting the Chinese date, the arillus longan, the black sesame seed, the walnut kernel and the caramel into the already decocted liquor, adding the clear water to 800 milliliters and cooking by the slow fire into 140 milliliters of glutinous porridge.