An apparatus and a method for controlling oil of a multi-compressor
installed in an air conditioner includes a microcomputer for sequentially
stopping compressors installed in the air conditioner for a preset time
and then sequentially operating the compressors when the preset time
elapses; and oil pipes connected to the compressors and balancing oil in
the compressors, so that damage of the compressors due to imbalance of
refrigerating machine oil is prevented by uniformly dividing oil of a
multi-compressor installed in the air conditioner.