Purple potato filler for bread and making method of purple potato filler

The invention discloses a purple potato filler for bread and a making method of the purple potato filler. The purple potato filler is prepared from the following steps of steaming 5000 parts of purple potatoes, peeling the steamed purple potatoes, adding 1000 parts of sugar, 500 parts of milk powder, 100 parts of butter and 1320 parts of cooked flour, uniformly stirring the peeled purple potatoes, the sugar, the milk powder, the butter, and the cooked flour so as to obtain a mixture, refrigerating the mixture, and preserving the refrigerated mixture. The purple potato filler for the bread, provided by the invention, is good in mouth feel, and enriches dishes on the dining table of people.