An automated analyzer comprising: a probe (7a, 8a, 11a, 12a) disposed with a tip end thereof facing downward and configured to dispense an object to be dispensed to a plurality of reaction vessels for causing a sample to be analyzed to react with a reagent; a sample pump and a cleaning water tank connected to the probe (7a, 8a, 11a, 12a); a measurement unit configured to measure a reaction liquid of the sample and the reagent in the reaction vessel; a cleaning tank (13, 14, 32, 33) configured to clean the probe (7a, 8a, 11a, 12a); and a control device configured to control an operation of the probe (7a, 8a, 11a, 12a), the measurement unit, and the cleaning tank (13, 14, 32, 33), wherein the cleaning tank (13, 14, 32, 33) includes: a cleaning pool configured to store cleaning water for immersing and cleaning the probe (7a, 8a, 11a, 12a), and a drying tank configured to suction cleaning water adhering to a surface of the probe (7a, 8a, 11a, 12a), and the control device is configured to move the probe (7a, 8a, 11a, 12a) to an immersion position, immerse the probe (7a, 8a, 11a, 12a) in the cleaning water stored in the cleaning pool and then pull the probe (7a, 8a, 11a, 12a) up, and thereafter move the probe (7a, 8a, 11a, 12a) to a drying position, insert the probe (7a, 8a, 11a, 12a) into the drying tank, remove cleaning water on the surface of the probe (7a, 8a, 11a, 12a) by vacuum suction, and, at the same time, discharge internal cleaning water from the probe (7a, 8a, 11a, 12a) wherein the internal cleaning water was sent to the probe (7a, 8a, 11a, 12a) from the cleaning water tank by the sample pump. a probe (7a, 8a, 11a, 12a) disposed with a tip end thereof facing downward and configured to dispense an object to be dispensed to a plurality of reaction vessels for causing a sample to be analyzed to react with a reagent; a sample pump and a cleaning water tank connected to the probe (7a, 8a, 11a, 12a); a measurement unit configured to measure a reaction liquid of the sample and the reagent in the reaction vessel; a cleaning tank (13, 14, 32, 33) configured to clean the probe (7a, 8a, 11a, 12a); and a control device configured to control an operation of the probe (7a, 8a, 11a, 12a), the measurement unit, and the cleaning tank (13, 14, 32, 33), wherein the cleaning tank (13, 14, 32, 33) includes: a cleaning pool configured to store cleaning water for immersing and cleaning the probe (7a, 8a, 11a, 12a), and a drying tank configured to suction cleaning water adhering to a surface of the probe (7a, 8a, 11a, 12a), and a cleaning pool configured to store cleaning water for immersing and cleaning the probe (7a, 8a, 11a, 12a), and a drying tank configured to suction cleaning water adhering to a surface of the probe (7a, 8a, 11a, 12a), and the control device is configured to move the probe (7a, 8a, 11a, 12a) to an immersion position, immerse the probe (7a, 8a, 11a, 12a) in the cleaning water stored in the cleaning pool and then pull the probe (7a, 8a, 11a, 12a) up, and thereafter move the probe (7a, 8a, 11a, 12a) to a drying position, insert the probe (7a, 8a, 11a, 12a) into the drying tank, remove cleaning water on the surface of the probe (7a, 8a, 11a, 12a) by vacuum suction, and, at the same time, discharge internal cleaning water from the probe (7a, 8a, 11a, 12a) wherein the internal cleaning water was sent to the probe (7a, 8a, 11a, 12a) from the cleaning water tank by the sample pump. move the probe (7a, 8a, 11a, 12a) to an immersion position, immerse the probe (7a, 8a, 11a, 12a) in the cleaning water stored in the cleaning pool and then pull the probe (7a, 8a, 11a, 12a) up, and thereafter move the probe (7a, 8a, 11a, 12a) to a drying position, insert the probe (7a, 8a, 11a, 12a) into the drying tank, remove cleaning water on the surface of the probe (7a, 8a, 11a, 12a) by vacuum suction, and, at the same time, discharge internal cleaning water from the probe (7a, 8a, 11a, 12a) wherein the internal cleaning water was sent to the probe (7a, 8a, 11a, 12a) from the cleaning water tank by the sample pump.