NOVELTY - Producing wallboard includes planting rattan, bamboo, willow, and wood branches and crushing; drying; mixing uniformly wheat bran, gypsum powder, phosphate, urea, wintergreen oil, and briquettes slag powder, adding wettable carbendazim aqueous solution and stirring, drying and sterilizing, heating, adding binder, ferrous sulfate, dolomite powder, calcium chloride, diethanolamine, antimony trioxide, and vinyltriethoxysilane to fine particle, mixing, compression molding, and drying to obtain the wall material.    USE - Method for producing wallboard.    ADVANTAGE - The method is environment-friendly, and can save material. It can produce wallboard having lightweight, which is easy to construct, safe and non-toxic, and has aging resistance and heat insulation property.    DETAILED DESCRIPTION - Producing wallboard comprises:    (A) planting rattan, bamboo, willow, and wood branches, crushing and processing the product, collecting the waste, naturally drying, classifying and drying, grading and sterilizing at 100-120 degrees C;    (B) drying the pulverized particles at 100-120 degrees C for 25-35 minutes to obtain the plant particle which is used for producing edible fungi culture medium, gypsum powder of the plant particles and wheat bran;    (C) mixing uniformly 15-17 wt.% wheat bran, 2-3 wt.% gypsum powder, 0.9-1 wt.% phosphate, 0.6-0.7 wt.% urea, 0.4-0.5 wt.% wintergreen oil, and 0.2-0.3 wt.% briquettes slag powder, adding 50-60% wettable carbendazim aqueous solution and stirring until the water content reaches 55-65% to obtain edible fungi culture medium;    (D) drying, sterilizing for one time by using the culture medium and adding 45-55% wheat bran, 100-101% gypsum powder, 100-100.3% phosphate fertilizer, 100-100.2% urea and 95-99% wettable carbendazim aqueous solution;    (E) heating edible fungi culture medium at 100-120 degrees C and drying to obtain the coarse particles at more than 0.5 mm; and    (F) adding 12-14 wt.% binder, 0.2-0.3 wt.% ferrous sulfate, 4-6 wt.% dolomite powder, 2-4 wt.% calcium chloride, 0.2-0.3 wt.% diethanolamine, 0.3-0.4 wt.% antimony trioxide, and 0.8-1 wt.% vinyltriethoxysilane to the obtained fine particle, mixing with water so that the water content is 6-8%, after mixing, compression molding into molds, and drying to obtain the wall material.