An apparatus and method for production simulation simulates to calculate a total number of assembly boards manufactured with time by an electronic-component-mounting apparatus which includes a component feeding section having plural component feeders for feeding various components. The apparatus and the method allow a result of the simulation to be displayed. The production simulation apparatus is linked with a host computer for generating, transmitting, receiving, and storing data. When data for mounting components on a bare board is generated, production data for providing local maximum mounting efficiency is generated through carrying out an optimization process. The simulation for manufacturing the assembly boards is carried out using the production data and a production command data.
