A dishwasher comprising: a main body in which a washing tub is formed; a sump provided in the main body and storing washing water; a plurality of injection nozzles to inject the washing water into the washing tub; a plurality of flow passages respectively connected to the plurality of injection nozzles; and a distribution apparatus configured to selectively open and close the plurality of flow passages, and including a rotary member having a plurality of independent connection passages communicating with the plurality of flow passages, respectively, and a case in which the rotary member is accommodated, characterised in that the distribution apparatus is further disposed below and in line with one of the plurality of flow passages ; and the dishwasher further comprises: a gear portion integrally provided at one side of the rotary member ; a motor disposed below the distribution apparatus and including a driving gear connected to a rotation shaft of the motor ; and a connection gear located between and configured to engage with the driving gear and the gear portion wherein the connection gear may be rotated in the clockwise or counter-clockwise direction by the driving force of the motor , and wherein the rotary member is rotated by receiving a driving force from the motor through the driving gear , the connection gear and the gear portion , such that when at least one of the plurality of connection passages is opened, the washing water flows to a flow passage communicating with the at least one connection passage . a main body in which a washing tub is formed; a sump provided in the main body and storing washing water; a plurality of injection nozzles to inject the washing water into the washing tub; a plurality of flow passages respectively connected to the plurality of injection nozzles; and a distribution apparatus configured to selectively open and close the plurality of flow passages, and including a rotary member having a plurality of independent connection passages communicating with the plurality of flow passages, respectively, and a case in which the rotary member is accommodated, characterised in that the distribution apparatus is further disposed below and in line with one of the plurality of flow passages ; and the dishwasher further comprises: a gear portion integrally provided at one side of the rotary member ; a motor disposed below the distribution apparatus and including a driving gear connected to a rotation shaft of the motor ; and a connection gear located between and configured to engage with the driving gear and the gear portion wherein the connection gear may be rotated in the clockwise or counter-clockwise direction by the driving force of the motor , and wherein the rotary member is rotated by receiving a driving force from the motor through the driving gear , the connection gear and the gear portion , such that when at least one of the plurality of connection passages is opened, the washing water flows to a flow passage communicating with the at least one connection passage . a gear portion integrally provided at one side of the rotary member ; a motor disposed below the distribution apparatus and including a driving gear connected to a rotation shaft of the motor ; and a connection gear located between and configured to engage with the driving gear and the gear portion wherein the connection gear may be rotated in the clockwise or counter-clockwise direction by the driving force of the motor , and wherein the rotary member is rotated by receiving a driving force from the motor through the driving gear , the connection gear and the gear portion , such that when at least one of the plurality of connection passages is opened, the washing water flows to a flow passage communicating with the at least one connection passage . <EOS>