A method of controlling a washing apparatus including: a cabinet (2, 110) having an opening, and a cabinet door coupled to the cabinet (2, 110) and configured to open or close the opening, a tub accessible through the opening in a state in which the cabinet door is opened, that is configured to store water, and that includes a tub opening at a top of the tub, a tub cover coupled to the tub, that covers the tub opening, and that includes an introduction port through which laundry is introduced into the interior area of the washing apparatus, a tub door coupled to the tub cover and configured to open or close the introduction port, and that is independently operated of the cabinet door, a drum located in the tub and configured to rotate about a shaft by a motor, the shaft extending in a vertical direction, a sensor configured to measure the level of the water in the tub, or to measure the level of the water in a water level pipe connected to the tub so as to be parallel to the tub, or to transmit and receive electromagnetic waves reflected by bubbles or the water in the tub, or to measure a current value supplied to the motor, characterized by a controller configured to control operations of the washing apparatus, a spray unit for spraying water toward a bottom surface of the drum, wherein the method comprises: sequentially performing, with the washing apparatus, a washing cycle, a rinsing cycle, and a spin-drying cycle, determining whether bubbles have been generated in the tub during the washing cycle by the sensor, sequentially performing, during the rinsing cycle, draining washing water from the tub, intermittently spinning the drum to dry laundry using centrifugal force generated by rotation of the drum, supplying wash water in the tub, and rinsing laundry, wherein, if bubble generation has been determined in the washing cycle, at least one operation directed to reducing bubbles by spraying water with the spray unit toward a bottom surface of the drum after the step of draining washing water and before the step of intermittently spinning the drum in the rinsing cycle is performed. a cabinet (2, 110) having an opening, and a cabinet door coupled to the cabinet (2, 110) and configured to open or close the opening, a tub accessible through the opening in a state in which the cabinet door is opened, that is configured to store water, and that includes a tub opening at a top of the tub, a tub cover coupled to the tub, that covers the tub opening, and that includes an introduction port through which laundry is introduced into the interior area of the washing apparatus, a tub door coupled to the tub cover and configured to open or close the introduction port, and that is independently operated of the cabinet door, a drum located in the tub and configured to rotate about a shaft by a motor, the shaft extending in a vertical direction, a sensor configured to measure the level of the water in the tub, or to measure the level of the water in a water level pipe connected to the tub so as to be parallel to the tub, or to transmit and receive electromagnetic waves reflected by bubbles or the water in the tub, or to measure a current value supplied to the motor, characterized by a controller configured to control operations of the washing apparatus, a spray unit for spraying water toward a bottom surface of the drum, wherein the method comprises: sequentially performing, with the washing apparatus, a washing cycle, a rinsing cycle, and a spin-drying cycle, determining whether bubbles have been generated in the tub during the washing cycle by the sensor, sequentially performing, during the rinsing cycle, draining washing water from the tub, intermittently spinning the drum to dry laundry using centrifugal force generated by rotation of the drum, supplying wash water in the tub, and rinsing laundry, wherein, if bubble generation has been determined in the washing cycle, at least one operation directed to reducing bubbles by spraying water with the spray unit toward a bottom surface of the drum after the step of draining washing water and before the step of intermittently spinning the drum in the rinsing cycle is performed. sequentially performing, with the washing apparatus, a washing cycle, a rinsing cycle, and a spin-drying cycle, determining whether bubbles have been generated in the tub during the washing cycle by the sensor, sequentially performing, during the rinsing cycle, draining washing water from the tub, intermittently spinning the drum to dry laundry using centrifugal force generated by rotation of the drum, supplying wash water in the tub, and rinsing laundry, wherein, if bubble generation has been determined in the washing cycle, at least one operation directed to reducing bubbles by spraying water with the spray unit toward a bottom surface of the drum after the step of draining washing water and before the step of intermittently spinning the drum in the rinsing cycle is performed.