PURPOSE: To provide a manufacturing method for a fiber reinforced cement board for improving remarkably the shape retention and product strength in the non-asbestos blend in which the use of asbestos is discontinued.

CONSTITUTION: In the dry method in which a dry cement blend is sprayed larminarily on a molding belt and the blend is molded into the board shape by an upper hydrolytic roll, dry cement blends S1 and S2 are supplied dividedly at least two times onto a molding belt 2 laminarily, and during the supply, net-shaped reinforcing fiber 4 is fed and interlaminated and molded into the board shape thereafter by a compression roll 5 and cut into the given shape and then cured in the processes of the method, and strength is improved remarkably by the net-shaped reinforcing fiber interposed in an intermediate layer.