A laundry treatment apparatus comprising: - a pre-washer configured to perform pre-washing of laundry in an accommodation space which accommodates the laundry, wherein the pre-washer has a sink bowl having an open top portion; - a lid disposed on a top portion of the pre-washer to open and close the accommodation space ; - a rear panel disposed at a rear side of the lid ; - a main washer disposed beside the pre-washer , and configured to perform main washing, rinsing, and spin-drying of the laundry when the laundry, pre-washed by the pre-washer , is introduced into the main washer from a front side; - a dryer disposed beside the main washer , and configured to perform drying of the laundry when the laundry, spin-dried by the main washer , is introduced into the dryer from a front side; and - an ironing part disposed beside the dryer , and having a top surface to iron the laundry dried by the dryer ; wherein the pre-washer comprises a faucet disposed at the sink bowl and configured to supply wash water to the accommodation space , the sink bowl having a faucet receiving groove in which the faucet is received; characterized in that the faucet is installed to be movable upward and downward; wherein the faucet comprises: a horizontal part received in the faucet receiving groove , and an extending part extending downward from the horizontal part to be disposed at a rear side of the sink bowl ; wherein a latch groove is provided on a rear surface of the extending part ; and wherein a latch protrusion is provided at the rear panel and is configured to be latched into the latch groove when the faucet protrudes from the faucet receiving groove . - a pre-washer configured to perform pre-washing of laundry in an accommodation space which accommodates the laundry, wherein the pre-washer has a sink bowl having an open top portion; - a lid disposed on a top portion of the pre-washer to open and close the accommodation space ; - a rear panel disposed at a rear side of the lid ; - a main washer disposed beside the pre-washer , and configured to perform main washing, rinsing, and spin-drying of the laundry when the laundry, pre-washed by the pre-washer , is introduced into the main washer from a front side; - a dryer disposed beside the main washer , and configured to perform drying of the laundry when the laundry, spin-dried by the main washer , is introduced into the dryer from a front side; and - an ironing part disposed beside the dryer , and having a top surface to iron the laundry dried by the dryer ; wherein the pre-washer comprises a faucet disposed at the sink bowl and configured to supply wash water to the accommodation space , the sink bowl having a faucet receiving groove in which the faucet is received; characterized in that the faucet is installed to be movable upward and downward; wherein the faucet comprises: a horizontal part received in the faucet receiving groove , and an extending part extending downward from the horizontal part to be disposed at a rear side of the sink bowl ; wherein a latch groove is provided on a rear surface of the extending part ; and wherein a latch protrusion is provided at the rear panel and is configured to be latched into the latch groove when the faucet protrudes from the faucet receiving groove . <EOS>