The invention relates to a method for preparing an ecological board from a moso bamboo material, and belongs to the technical field of building material production. The present invention firstly collects the bamboo leaves and trunks on moso bamboo, beats the trunks into shavings, and then exposes them to the sun and dries them for later use. The dried bamboo leaves are crushed into bamboo leaf powder, stirred and mixed evenly with polyvinyl chloride resin, and Put it in an internal mixer and put it on a flat vulcanizer for hot pressing, take it out and cold press it to get the bamboo leaf resin layer, then crush the particle board into bamboo chips, mix with polyethylene resin, limestone powder and other substances, impregnate, Filtrate, wash with ethanol, dry, banbury, plasticize, cold press to obtain the middle layer of micro-foamed bamboo chips, and finally make the bamboo leaf resin layer into the upper and lower layers, and the middle layer is the middle layer of micro-foamed bamboo chips, and carry out hot pressing and cold press. Finally, the beneficial effects of the present invention are: no bubbling, pollution resistance, no carbonization phenomenon, mass production is possible, production efficiency is improved; production steps are simple, and cost is saved.