The invention provides a preserved haw oyster mushroom, comprising the following raw materials by weight: 380 to 400 parts of oyster mushroom, 100 to 120 parts of haw, 30 to 40 parts of pineapple, 40 to 50 parts of apple vinegar, 70 to 80 parts of orange juice, 10 to 15 parts of rose powder, 40 to 50 parts of corn flour, 5 to 6 parts of Geshen, 5 to 6 parts of cassia bark, 4 to 5 parts of Sichuan lovage rhizome, 4 to 5 parts of milkvetch root, 4 to 5 parts of Chinese magnoliavine fruit, 3 to 4 parts of lily, 3 to 4 parts of wolfberry, 3 to 4 parts of Lichuncao, 2 to 3 parts of safflower, 8 to 10 parts of a food additive, 80 to 90 parts of xylitol, 10 to 15 parts of stevioside and a proper amount of water. According to the invention, the preserved haw oyster mushroom is easy and environment-friendly to prepare; the oyster mushroom contains a plurality of amino acids and is beneficial for human health; food materials like the haw and the pineapple are added, so the preserved haw oyster mushroom is nutritious and delicious; through addition of extracts of the Chinese herbal materials like Geshen, cassia bark, Sichuan lovage rhizome and milkvetch root capable of fostering beauty, removing spots and improving immunity, the preserved haw oyster mushroom has special health care functions; and the preserved haw oyster mushroom is applicable to most people.