Moving picture coding method and the moving picture coding apparatus

Dividing the moving image signal into a plurality of macro-blocks, the moving picture coding apparatus for coding a difference between each macro block and the motion compensated prediction image obtained by the division (1200), the prediction processing for a plurality of moving image signals a prediction unit which performs (1220), the prediction processing section, the prediction processing of the prediction process and the first second moving picture signal frame rate is less than the moving image signal of the first moving image signal and in case of performing simultaneously control unit for an instruction to reduce the arithmetic quantity relating to only the prediction processing for the first moving image signal and a (1214).