There is provided a component feeding device including multiple component replenishing devices configured to replenish with components having different shapes; multiple stages on which the components replenished from the multiple replenishing devices are scattered, and a control section configured to cause the multiple replenishing devices to replenish the components to the respective stages at an arbitrary timing. There is provided a component feeding method for supplying components, having different shapes and being respectively replenished onto multiple stages from multiple replenishing devices, to a component mounting device with the components being respectively scattered on the multiple stages, wherein amounts of the components is capable of being respectively changed for each of the multiple stages.