Preparation method of Maca active extracts

The invention provides a preparation method of Maca active extracts. According to the method, firstly, fresh Maca roots or dry Maca roots are pre-treated, then, percolation is carried out for twice after the treatment by a pre-heated mixed solvent, freeze drying is carried out after additives are added into concentrated liquid, and the Maca active extracts are obtained. The method provided by the invention is simple, the operation is easy, the nutrition ingredients and active substances of the Maca are sufficiently and fully integrated, the active ingredient enzymolysis is prevented, and in addition, the loss and the damage of nutrition ingredients and active ingredients can be effectively prevented. The obtained product can realize the instant eating effect, can also be used as raw materials to be made into health care foods in tablets, capsules and the like, or can be added into various kinds of food as additives to realize the application.