The invention discloses cranberry mousse powder, comprising the following components by weight percent: 40-50% of white granulated sugar, 25-35% of glucose, 10-15% of cranberry powder, 10-15% of gelatin and 0.6-1.0% of critic acid. The cranberry mousse powder is obtained through the steps of burdening, mixing, sterilizing and packaging. The cranberry mousse powder can be used for fabricating mousse, also can be used for fabricating mousse fillings of mousse cake, slice cake, swiss roll, cream puff and sweetmeats, and is applicable to a bakehouse, a cake house, a baked chain and the like. When cranberry mousse is fabricated by the cranberry mousse powder, the method is simple in process, convenient to operate and easy to grasp; the prepared product is pure and natural in flavor, and fine and cool in taste, and has the characteristics of senior ices. A lot of immediate procedures are reduced, so that the probability of problems in quality, sanitation and the like is reduced. Therefore, the cranberry mousse powder has significant advantages in the aspects such as production management, quality control, product standardization and the like.