The invention discloses a functional sheet for adjuvant treatment on diabetes type II and a production method thereof. The functional sheet is prepared from ginkgo leaf extract, mulberry leaf extract, sea buckthorn extract, grape seed extract, black fungus polysaccharide, armillaria mellea polysaccharide, ganoderan, agaricus blazei murill polysaccharide, grifolan, starch, microcrystalline cellulose, dextrin and magnesium stearate. The production method comprises material selection, extract powder preparation, domestic fungus extract product preparation, weighing and mixing, granulation, tabletting and packaging. The functional sheet is rich in anthocyanidin, flavonoids and polysaccharide of edible fungi. The ingredients are combined, mainly act on lung, spleen and kidney channels, have effects of tonifying Qi and Yin, invigorating spleen and kidney, and engendering liquid and moistening dryness and can realize purposes of assistantly reducing blood glucose and improving patient living quality.