Abstract: The present invention relates to an instant cooking heating bag and, more specifically, to an instant cooking heating bag of which an inner bag, in which food is to be accommodated, is put into an outer bag so as to be integrally formed by the binding of the inner bag with the outer bag, provided with a heating agent and an aqueous solution bag in a space formed between the outer bag and the inner bag, and provided with a cutting means connected to the aqueous solution bag, so as to allow food to be heated and cooked instantly by a user's simple manipulation of pulling the cutting means, thereby allowing warm food to be conveniently consumed outdoors without using additional cooking utensils.