The invention discloses instant soup containing shredded chicken and shiitake mushrooms. The instant soup is characterized by being prepared from components as follows: starchy flour, the chicken, lean meat, fish, edible salt, snow fungi, the shiitake mushrooms, dextrin, monosodium glutamate, powdered sugar, dried scallop and dried shallots in the mass ratio being (20-40) : (20-40) : (5-15) : (5-15) : (2-10) : (1-7) : (1-5) : (1-4) : (1-6) : (1-5) : (0.1-0.8) : (0.1-1). In order to overcome defects in prior art, the instant soup which contains the shredded chicken and the shiitake mushrooms, has simple components, is reasonable in matching, has balanced nutrition and unique flavor and is nutritious, healthy, instant and convenient is provided. The invention further relates to a method for preparing the instant soup containing the shredded chicken and the shiitake mushrooms.