Disclosed herein is a still operation of a washing machine, and more particularly, a washing machine which includes an operation condition of the washing machine in correspondence with each of a plurality of stillness modes and operates according to the operation condition corresponding to any one selected from the plurality of stillness modes. The washing machine includes a controller which, by the selection of any one of a plurality of stillness modes which are distinguished according to a stillness degree of an operation, controls the washing machine according to an operation condition corresponding to the selected stillness mode.