The present invention relates to a manufacturing method for a flowered nickel screen die roll. The technical process comprises the following steps: machining, copper plating, grinding, glue coating, pattern fabrication, laser engraving, corrosion, rubber filling and nickel plating. The preparation method is characterized in that: the pattern fabrication process comprises the following steps: applying a 70mesh screen to a needed pattern grey scale file to obtain square mesh points with various sizes and directly form a pattern; synthetically sorting a grey chart file, the laser engraving expansion, the corrosion expansion and the die roll nickel plated screen expansion to form a laser engraved file which is represented by grey scale values from 0% to 100%; and adopting a file with the grey scale value above 98% to fabricate a minimal screen wall, and adopting a file with the grey scale value below 3% to fabricate a maximal screen wall. The method adopts the mesh screen with the same meshes and different mesh sizes to form the grey chart pattern, and directly fabricates the pattern on the die roll of a nickel plated circular screen. The electroplated nickel circular screen is directly used for printing without pattern information loss, and has rich gradual change gradations.