The utility model discloses a mask plate for evaporation plating. The mask plate comprises a mask plate body and an evaporation plating hole formed in the mask plate body, wherein the evaporation plating hole penetrates through the mask plate body, the edge line of the evaporation plating hole on the cross section where the central axis of the evaporation plating hole is positioned is external-expansion horn-shaped, and the hole wall of the evaporation plating hole and the plate surface of the mask plate body form an included angle of 30-60 degrees. With the mask plate for evaporation plating, provided by the utility model, the blocking of the hole wall of the evaporation plating hole to evaporation plating materials is reduced in the evaporation plating process, evaporation plating process has no evaporation plating dead angle, the thickness of evaporation plating layers is uniform, and the evaporation plating quality is improved.