PURPOSE: To obtain the process for manufacturing the above fiber-reinforced cement board capable of displaying a fiber reinforcing effect corresponding to the loadings of pulp fibers when pulp fibers are used as asbestos alternate fibers in dry type manufacture in a cement mixing system.

CONSTITUTION: In a dry type belt molding method using cement mixing, in which pulp fibers are replaced with asbestos and employed as reinforcing fibers, the molding method consists of a process, in which the upper section of a molding belt is supplied with a compounding material, in which the 5-15wt.% mineral grains of mica or warastonite are mixed with 30-50wt.% cement, 30-50wt.% silica sand having a plain value of 3000-5000cm2/g, 10-15wt.% silica H me, 20-30wt.% aggregate and 4-5wt.% pulp fibers, in a stratiform shape, water is added and the compounding material is compressed and shaped in a tabular form, and the shaped compounding material is cured and hardened, and strength is increased remarkably by adding the mineral grains of mica or wallastonite.