▎ 摘　　要

NOVELTY - Building composite board with good impact resistance comprises 40-50 pts. wt. cement, 10-20 pts. wt. plant fiber, 8-10 pts. wt. graphene oxide, 4-6 pts. wt. polyacrylic acid zinc blend rubber, and 30-50 pts. wt. river sand. USE - Building composite board with good impact resistance. ADVANTAGE - The building composite board has good impact resistance, and the impact resistance is still be well retained after encountering water. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a composite building board with good impact resistance, which involves: (A) mixing cement, plant fiber, graphene oxide, polyacrylic acid zinc blend rubber and river sand; and (B) adding 0.5-0.8 times the cement mass, and then add 0.5-0.8 times the cement mass, after mixing and kneading water, stirring and mixing uniformly, discharging, pouring, and curing to get the product.