A component mounting method is provided in a component mounting apparatus that mounts a component onto a board using a plurality of pieces of production data linked to component data. The method includes executing, when the component data is changed, a simulation of a production cycle time based on the production data, and comparing a simulation result of the production cycle time after change of the component data with a production cycle time or a simulation result of the production cycle time before change of the component data, and outputting a comparison result.