A developing apparatus and method is provided in which the use amount of a developing solution can be reduced without deteriorating the accuracy of development. The developing apparatus comprises a new solution tank for storing an unused developing solution and a used solution tank for storing a used developing solution which is withdrawn from a material to be treated. A new solution feeding nozzle extends from the new solution tank, and the tip end of the nozzle faces toward the upper portion of the cup of each developing unit. A used solution feeding nozzle extends from the used solution tank, and the tip end of the nozzle faces toward the upper portion of the cup of each developing unit.